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・ 132nd Engineer Battalion
・ 132nd Fighter Wing
・ 132nd Illinois Volunteer Infantry Regiment
・ 132nd Indiana Infantry Regiment
・ 132nd Infantry Brigade (United Kingdom)
・ 132nd Infantry Division (Wehrmacht)
・ 132nd meridian
・ 132nd meridian east
・ 132nd meridian west
・ 132nd New York State Legislature
・ 132nd New York Volunteer Infantry Regiment
・ 132nd Ohio Infantry
・ 132nd Regiment
・ 132P/Helin–Roman–Alu
・ 133
133 (number)
・ 133 BC
・ 133 Cyrene
・ 133 Squadron (Israel)
・ 1330
・ 1330 AM
・ 1330 in Ireland
・ 1330 Spiridonia
・ 1330s
・ 1330s BC
・ 1330s in art
・ 1330s in England
・ 1330s in poetry
・ 1331
・ 1331 in Ireland


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133 (number) : ウィキペディア英語版
133 (number)

133 (one hundred () thirty-three) is the natural number following 132 and preceding 134.
==In mathematics==
133 is an ''n'' whose divisors (excluding ''n'' itself) added up divide φ(''n''). It is an octagonal number and a Harshad number. It is also a happy number.
133 is a repdigit in base 11 (111) and base 18 (77), whilst in base 20 it is a cyclic number formed from the reciprocal of the number three.
133 is a semiprime: a product of two prime numbers, namely 7 and 19. Since those prime factors are Gaussian primes, this means that 133 is a Blum integer.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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