Wednesday, November 28, 2012

1422

1422 = 2 x 3 x 3 x 79.

1422 is the number of ways to stack 27 boxes in a line so that each box lies on the table or on a box next to two boxes (A001522).

1422 is a divisor of 553 - 1.

14222 = 2022084 has only even digits (A030097).

The sum of the digits of 1422 and 14222 are both squares (A197125): 1 + 4 + 2 + 2 = 9 = 32 and 2 + 0 + 2 + 0 + 8 + 4 = 16 = 42.


Source: What's Special About This Number?

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