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175 (number) : ウィキペディア英語版 | 175 (number)
175 (one hundred () seventy-five) is the natural number following 174 and preceding 176. ==In mathematics== 175 is an odd number, a composite number, and a deficient number. It is a decagonal number, a 19-gonal number, and a centered 29-gonal number. 175 is an Ulam number, and a Zuckerman number. It is the magic constant of the ''n''×''n'' normal magic square and n-Queens Problem for n = 7. In base 10, raising the digits of 175 to powers of successive integers equals itself: 135, 518, 598, and 1306 also have this property.
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