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44 (number)
44 (forty-four) is the natural number following 43 and preceding 45. == In mathematics ==
Forty-four is a tribonacci number, an octahedral number and the number of derangements of 5 items. Since the greatest prime factor of 442 + 1 = 1937 is 149 and thus more than 44 twice, 44 is a Størmer number. The aliquot sequence of 44 is (44,40,50,43,1,0). Given Euler's totient function, and In decimal notation (base 10), 44 is a palindromic number and a happy number,
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