World!Of Numbers |
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[ March 20, 2008 ] between certain palindromic numbers and pandigitals were recorded, which I would like to share with your readers." ❄ ❄ There exist nine thousand 8-digit palindromic numbers. Only a very 36022063 * 9 = 324198567 and I was able to arrive at 34 such combinations of 8-digit palindromes ❄ ❄ There are ninety thousand 9-digit palindrome numbers. Only a few 725434527 * 9 = 6528910743 and I was able to extricate 559 such combinations of 9-digit palindromes ❄ ❄ An interesting phenomenon which I notice is that all the 34 equations 42055024 * 9 = 378495216 | 420545024 * 9 = 3784905216 In the above equation, the intervention of 4 between two 5's in the palindrome
With a little change in equation 20 we can produce the following unexpected gem that will be of immense interest to 'digit' lovers !
Now change the last but one digit in the palindromes from 3 into a 2
The digit groups from 0 (1) to 4 and from 5 to 9 are swapped
For reference goals and easy searching all the nine- & pandigitals
implicitly displayed in these topics are listed here.
Topic → 3784905216 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A000173 Prime Curios! Prime Puzzle Wikipedia 173 Le nombre 173 |
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