Thursday, February 16, 2012

554

554 = 2 x 277.

554 has a representation as a sum of two squares: 554 = 52 + 232.

554 is the maximum number of regions into which 24 circles can divide a plane.

554 is the number of self-dual planar graphs with 20 edges.


554 is 202112 in base 3 and 20222 in base 4. It is 464 in base 11.

Source: What's Special About This Number?

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