Tuesday, February 16, 2010

9031

9031 = 11 x 821.

9031 is a number that cannot be written as a sum of three squares.

9031 is 13344 in base 9 and 3411 in base 14.

9031 is the difference of two consecutive, nonnegative fifth powers: 75 - 65 = 9031.

9031 is the sum of seven distinct powers of three.

NGC 891, also designated PGC 9031, is an edge-on, unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda.

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