Thursday, February 25, 2010
7209
7209
= 3
4
x 89.
7209
has a representation as a sum of two squares:
7209
= 45
2
+ 72
2
.
7209
has a fourth power that is the sum of four fourth powers.
7209
is 30006 in base 7, 10800 in base 9, and 1018 in base 19.
LEGO set
7209
, introduced in 2004, featured a pteranodon.
Source:
What's Special About This Number?
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