Today is Day 145 of 2013
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145 |
is a centreed square number and also a pentagonal number. is a product of 2 distinct primes: 5 x 29
= 1! + 4! + 5! = 43 + 34 = 122 + 12 = 82 + 92 (sum of squares) = (12 + 22)(22 + 52) = 33 + 33 + 33 + 43 (sum of cubes) |
Many thanks are extended to Archimedes' Lab for their information.
 145

Today is day number of 2013. Below are various representations of the number 145, some dating thousands of years, and some very modern.
Chinese |  |
Egyptian |  |
Mayan | |
Babylonian |  |
Greek |  |
Abacus |  |
Roman | |
Hex | |
Binary | |
Many thanks are extended to Jo Edkins for her wonderful work.
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