1089
This number is a composite.
The only nonagonal number that is the sum of three 3-digit
primes which together contain the nine zeroless digits,
(149 + 257 + 683). [Homewood]
The smallest non-palindrome such that it and it's reversal
share the same prime factors. 1089 = 32 x
112 and it's reversal 9801 = 34 x
112. [Gudipati]
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