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Palindromic and p-gonal (Posted on 2014-01-05) Difficulty: 3 of 5
Determine the minimum value of a pentagonal number each of whose binary, quaternary and hexadecimal representations is a palindrome. What is the smallest decagonal number with this property?

Any solution must have more than one digit in any given base. So, trivial solutions like (0)base 2, (2)base 4 or, (B)base 16 are not allowed.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Solutioncomputer solutionCharlie2014-01-05 17:47:49
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