Thursday, March 17, 2011

500

500 = 22 x 53.

500 has two representations as a sum of two squares: 500 = 42 + 222 = 102 + 202.

There are exactly 500 prime numbers between 20,000 and 25,000.

166,500,333 = 1663 + 5003 + 3333.

500 is 4000 in base 5. It is 13310 in base 3 and 1313 in base 7.

A ream contains 500 sheets of paper.

Source: Numeropedia

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