Thursday, June 13, 2013

4720

4720 = 2 x 2 x 2 x 2 x 5 x 59.

4720 is a structured truncated cubic number (A100152).

4720 is an octagonal (star) number (A000567). The product of its digits is also an octagonal number (A117083): 4 x 7 x 2 x 0 = 0.

4720 is a number such that 4720 and 47202 = 22278400 use only the digits 0, 2, 4, 7, and 8 (A136906).


Source: What's Special About This Number?

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