World!Of Numbers |
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HOME plates WON | |
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Welcome all to this maths info-structure !
Allow me to present various recreational topics from the
WORLD!OF NUMBERS |
In this well-filled website you'll find a multitude of facts and figures about topics from the World!Of Numbers . Don't look for a logical order. It is an amalgamation of randomly gathered numbers, curios, puzzles, palindromes, primes, gems, your much valued contributions and more general information. Enjoy! Patrick De Geest
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Nieuw
\(\bbox[snow,8px,border:1px blue solid]{\small\text{ALLEMAAL GETALLEN}}\) or \(\bbox[snow,8px,border:1px blue solid]{\small\text{ALL NUMBERS}}\) from \(0\) to \(200\), thus a whole new lot of dedicated pages in Dutch. It is a collaboration between Ir. Jos Heynderickx and myself (Patrick De Geest). We show you their properties, particularities, curiosities, things worth knowing, puzzles, etc. Geniet ervan! Jos & Patrick
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![palpri](palpri.jpg)
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![](b-052.gif) | | | Introduction via links to palindrome sites |
![](b-052.gif) | | | Some thematic websources |
![](b-052.gif) | | | Various palindromic number records |
3 | | | Palindromic triangulars |
![](b-052.gif) | | | The most beautiful palindromic triangular |
![](b-052.gif) | | | Exhaustive list of palindromic triangulars |
![](b-052.gif) | | | Subsets of palindromic triangulars |
![](b-052.gif) | | | Details Part A from [1] to [49] |
![](b-052.gif) | | | Details Part B from [50] to [99] |
![](b-052.gif) | | | Details Part C from [100] to [200] |
![](b-052.gif) | | | Palindromic tetrahedrals |
![](b-052.gif) | | | Details of palindromic tetrahedrals |
![](b-014.gif) | | | New → Distributed Search |
![](b-052.gif) | | | Exhaustive list of palindromic squares up to length 31 |
![](b-052.gif) | | | Complete list of the sporadic square palindromes (SSP's) |
![](b-052.gif) | | | Subsets of palindromic squares |
![](b-052.gif) | | | Details of palindromic squares |
![](b-052.gif) | | | Extraordinary squares and powers (non-palindromic allowed) |
![](b-052.gif) | | | Palindromic cubes |
![](b-052.gif) | | | Details of palindromic cubes |
5 | | | Palindromic pentagonals |
![](b-052.gif) | | | Details of palindromic pentagonals |
![](b-052.gif) | | | Details of palindromic hexagonals |
7 | | | Palindromic heptagonals |
![](b-052.gif) | | | Details of palindromic heptagonals |
![](b-052.gif) | | | Details of palindromic octagonals |
![](b-052.gif) | | | Details of palindromic nonagonals |
![](b-052.gif) | | | Centered palindromic polygonals |
![](b-052.gif) | | | Palindromic primes pages info overview |
![](b-052.gif) | | | Palindromic primes page 1 |
![](b-052.gif) | | | Palindromic primes page 2 |
![](b-052.gif) | | | Palindromic primes page 3 |
![](b-052.gif) | | | Palindromic primes page 4 |
![](b-052.gif) | | | Palindromic primes page 5 |
![](b-052.gif) | | | Palindromic primes page 6 |
![](b-014.gif) | | | Assignment 2 |
![](b-014.gif) | | | Assignment 3 |
![](b-052.gif) | | | Palprimes where the sum over all digits is a minimum |
![](b-052.gif) | | | Multiple Palprimes “Four in a row” |
![](b-052.gif) | | | Circular primes |
![](b-052.gif) | | | Smoothly Undulating Palindromic Primes - SUPP's |
![](b-052.gif) | | | SUPP's - Sorted By Length |
![](b-014.gif) | | | SUP(P) Factorization lists |
![](b-052.gif) | | | Near Smoothly Undulating Primes with 6-digit undulators |
![](b-052.gif) | | | Near Smoothly Undulating Primes with 22-digit undulators |
![](b-052.gif) | | | Palindromic Wing Primes - PWP's |
![](b-052.gif) | | | PWP's - Sorted By Length |
![](b-052.gif) | | | Palindromic Plateau and Depression Primes - PDP's |
![](b-052.gif) | | | PDP's - Sorted By Length |
![](b-014.gif) | | | Some PDP Factorization lists |
![](b-052.gif) | | | Palindromic Merlon Primes - PMP's |
![](b-052.gif) | | | PMP's - Sorted By Length |
![](b-052.gif) | | | The nine digits page 1 |
![](b-052.gif) | | | The nine digits page 2 |
![](b-052.gif) | | | The nine digits page 3 |
![](b-052.gif) | | | The nine digits page 4 |
![](b-052.gif) | | | The nine digits page 5 |
![](b-052.gif) | | | The nine digits page 6 |
![](b-052.gif) | | | The nine digits page 7 |
![](b-014.gif) | | | John Abreu's palindrome puzzle |
![](b-052.gif) | | | Palindromic products of two ninedigital numbers |
![](b-052.gif) | | | Palindromic products of two pandigital numbers |
![](i-023.gif) | | | List of palindromes as products of two pandiagonals |
![](b-052.gif) | | | Palindromic pronic numbers of the form n(n+1) |
![](b-052.gif) | | | Palindromic quasipronic numbers of the form n(n+2) |
![](b-052.gif) | | | Palindromic quasipronics of the form n(n+X) |
![](b-052.gif) | | | Palindromic incremented squares of the form n^2+1 |
![](b-052.gif) | | | Palindromic incremented squares of the form n^2+X |
![](b-052.gif) | | | Palindromic decremented squares of the form n^2X |
![](b-052.gif) | | | Palindromic quasi_over_squares of the form n^2+(n+1) |
![](b-052.gif) | | | Palindromic quasi_over_squares of the form n^2+(n+X) |
![](b-052.gif) | | | Palindromic quasi_under_squares of the form n+(n+1)^2 |
![](b-052.gif) | | | Palindromic sums of squares of consecutive integers |
![](b-052.gif) | | | Powers of Consecutives Summing to Palindromes |
![](b-052.gif) | | | Palindromic sums of squares of odd & even consecutives |
![](b-052.gif) | | | Palindromic sums of cubes of consecutive integers |
![](b-052.gif) | | | Palindromic sums of powers of consecutive primes |
![](b-052.gif) | | | Various palindromic sumpatterns |
![](b-052.gif) | | | Sum of first n 'type of numbers' is palindromic |
![](b-052.gif) | | | More palindromic products of integer sequences |
![](b-052.gif) | | | Palindromic products of integers with their reversals |
![](b-052.gif) | | | Palindromic Pythagorean triples |
![](b-052.gif) | | | Palindromic subsets of concatenated sequences |
![](b-052.gif) | | | Palindromic numbers beyond base 10 page 1 |
![](b-052.gif) | | | Palindromic numbers beyond base 10 page 2 |
![](b-052.gif) | | | Palindromic numbers beyond base 10 page 3 |
![](b-052.gif) | | | Palindromic numbers beyond base 10 page 4 |
Factorization |
![](b-052.gif) | | | Home primes -
Repeated factorization of concatenated prime factors |
![](b-052.gif) | | | The concatenated numbers from Sm1 up to Sm200 |
![](b-052.gif) | | | The reversed concatenations from Rsm1 up to Rsm200 |
![](b-052.gif) | | | The repunit prime factors from R1 up to R100 |
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![](b-052.gif) | | | Facts and figures about 2002 the last palindromic year |
![](b-052.gif) | | | Facts and figures about 2002 continued... |
![](b-052.gif) | | | List of the 4260 left-truncatable primes |
![](b-052.gif) | | | Squares containing at most three distinct digits |
![](b-014.gif) | | | Finding Tridigital Squares using 'Quadratic Residues' |
![](b-052.gif) | | | Numbers whose digits occur with same frequency - Cl. P2 |
![](b-052.gif) | | | Classification P3 |
![](b-052.gif) | | | Classification P4 |
![](b-052.gif) | | | Classification P5 |
![](b-052.gif) | | | Sets of 3 composites in bidirectional SOPF pro-/retrogression |
![](b-052.gif) | | | The Prime Brier Brothers Project |
![](b-052.gif) | | | Search for the first PRP megaprime of the form 10^999999+y |
![](b-014.gif) | | | Output data of 10^999999 + y (y < 500000 ) |
![](b-014.gif) | | | Doublechecking PRP candidates |
![](b-052.gif) | | | Border PRP's around 'Powers of ten' |
![](i-023.gif) | | | Table in plain text from 00000 to 04999 |
![](i-023.gif) | | | Table in plain text from 05000 to 09999 |
![](i-023.gif) | | | Table in plain text from 10000 to 14999 |
![](i-023.gif) | | | Table in plain text from 15000 to 19999 |
![](i-023.gif) | | | Table in plain text from 20000 to 24999 |
![](i-023.gif) | | | Table in plain text from 25000 to 29999 |
![](i-023.gif) | | | Table in plain text from 30000 to 34999 |
![](i-023.gif) | | | Table in plain text from 35000 to 99999 |
![](b-014.gif) | | | Packed list of all PRP's of the form 10^n d up to 30000 |
![](b-014.gif) | | | Packed list of all PRP's of the form 10^n + d up to 30000 |
![](b-052.gif) | | | What was new in my website? |
![](b-052.gif) | | | Whatsnew? archive of 2002 |
![](b-052.gif) | | | Whatsnew? archive of 2001 |
![](b-052.gif) | | | Whatsnew? archive of 2000 |
![](b-052.gif) | | | Multiple precision JavaScript calculator |
![](b-052.gif) | | | Iso Latin I & Unicode character set |
![](b-052.gif) | | | All the 140 colourful exotic color names |
![](b-052.gif) | | | Some old photographs of the editor of this website |
![](b-052.gif) | | | Google Search Pop Up from this very homepage |
![](b-052.gif) | | | Pop Up from 'square.htm' & Wonplate 74 - Probability |
![](b-052.gif) | | | Pop Up from Wonplate 17 about DNA |
![](b-052.gif) | | | Pop Up from Wonplate 17 - Analyse |
![](b-052.gif) | | | Pop Up from Wonplate 16 - Small Puzzle |
![](b-052.gif) | | | Pop Up from 'square.htm' on pseudo palindromes |
![](b-052.gif) | | | Worksheet - Palindromic Sums of Powers |
![](b-052.gif) | | | Worksheet - Sequence from Wonplate 197 |
![](i-023.gif) | | | Worksheets from Wonplate 197 |
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![index](index.gif)
![Wavetriangle](i-701.gif) Join this refreshing journey into the vast space of numbers ! |
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For the prime fans !
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Integer Sequences ![](b-052.gif)
To look up a number sequence in Sloane's
On-Line Encyclopedia of Integer Sequences,
enter it here and click "Submit":
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To list all OEIS submissions from Patrick De Geest ![](b-052.gif)
To list all OEIS sequences with keywords Palindrome or Palindromic ![](b-052.gif) |
Prime Curios! Prime Puzzles The Digits Project Richard Phillips ![](b-052.gif)
What's Special About This Number? The Zero Saga Numberland 1-100 ![](b-052.gif)
Le Nombre 0 Nombre zéro et toutes les connotations associées ![](b-052.gif)
Wikipedia 0 (number) ![](b-052.gif) |