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196 (number) : ウィキペディア英語版 | 196 (number)
196 (one hundred () ninety-six) is the natural number following 195 and preceding 197. ==In mathematics==
* 196 is an even number * 196 is an abundant number, as 203 is greater than 196 * 196 is a composite number * 196 is an Erdős–Woods number, as it is possible to find sequences of 196 consecutive integers such that each inner member shares a factor with either the first or the last member * 196 is a heptagonal pyramidal number * 196 is an odious number * 196 is a pentagonal pyramidal number * 196 is a powerful number * 196 is a practical number * 196 is a square number (142) * 196 is the difference of 2 square numbers: 502 -482 * 196 is an 11-gonal number * 196 is an 34-gonal number * Divisors of 196: 1, 2, 4, 7, 14, 28, 49, 98, 196 * Prime factors of 196: 2 × 2 × 7 × 7 * There are 196 one-sided heptominoes, the polyominoes made from 7 squares.
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