Monday, March 31, 2014

9727

9727 = 71 x 137.

9727 is 302402 in base 5.

9727 divides 7217 - 1.

9727 is a number that cannot be written as the sum of three squares.

13 x 97272 + 13 x 9727 + 1 is a square (A104240).


Source: OEIS
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