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・ 52nd British Academy Film Awards
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・ 52nd Delaware General Assembly
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・ 52nd government of Turkey
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52 (number)
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52 (number) : ウィキペディア英語版
52 (number)

52 (fifty-two) is the natural number following 51 and preceding 53.
==In mathematics==
Fifty-two is the 6th Bell number and a decagonal number. It is an untouchable number, since it is never the sum of proper divisors of any number, and it is a noncototient since it is never the answer to the equation ''x'' - φ(''x'').

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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