2683

This number is a prime.

+ There are 2683 different shapes formed by bending (+ or - 90 degrees at each bend) a piece of wire of length less than or equal to 15 in the plane. [Post]

+ The sum of the first 2683 palindromic primes (176408935) is the largest such sum that is a distinct-digit number. [Gaydos]

(There is one curio for this number that has not yet been approved by an editor.)

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