252 (two hundred [and] fifty-two) is the natural number following 251 and preceding 253.
In mathematics 252 is: the central binomial coefficient , the largest one divisible by all coefficients in the previous line , where is the Ramanujan tau function. , where is the function that sums the cubes of the divisors of its argument:
a practical number, a refactorable number, a hexagonal pyramidal number. a member of the Mian-Chowla sequence.
There are 252 points on the surface of a cuboctahedron of radius five in the face-centered cubic lattice, 252 ways of writing the number 4 as a sum of six squares of integers, 252 ways of choosing four squares from a 4×4 chessboard up to reflections and rotations, 252 ways of placing three pieces on a Connect Four board, and 252 possible dice combinations in the game Yahtzee.
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