A260049 Composites whose prime factorization in base 5 is an anagram of the number in base 5.
2312, 2432, 3232, 5319, 5373, 10112, 10719, 11691, 14592, 15417, 19712, 20412, 21688, 22194, 23841, 24705, 25920, 26217, 32724, 36096, 39168, 41823, 42194, 42417, 43713, 51597, 58029, 59211, 61557, 62192, 66944, 67068, 68553, 72873, 76464
Offset: 1
Examples
2312 = 2^3 * 17^2. In base 5, 33222 = 2^3 * 32^2.
Links
- Giovanni Resta, Table of n, a(n) for n = 1..10000
Crossrefs
Programs
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Mathematica
Select[Range[10^5], !PrimeQ[#] && Sort@ IntegerDigits[#, 5] == Sort@ Flatten@ IntegerDigits[ Select[ Flatten@ FactorInteger@ #, #>1 &], 5] &] (* Giovanni Resta, Jul 14 2015 *)