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  Wikipedia: Forty

Wikipedia: Forty
Forty
From Wikipedia, the free encyclopedia.

40 (forty) is the natural number following thirty-nine and preceeding forty-one.

40
Cardinal forty
Ordinalfortieth
Numeral system
Factorization
Roman numeralXL
Binary101000
Hexadecimal28

Its divisors are 1, 2, 4, 5, 8, 10, 20 and 40.

Given 40, the Mertens function returns 0.

Forty is:

39 and 41


  

From Wikipedia, the free encyclopedia. 
Modified by Geona