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137 (number) : ウィキペディア英語版 | 137 (number)
137 (one hundred () thirty-seven) is the natural number following 136 and preceding 138. ==In mathematics ==
137 is the 33rd prime number; the next is 139, with which it comprises a twin prime, and thus 137 is a Chen prime. * 137 is an Eisenstein prime with no imaginary part and a real part of the form . * 137 is the fourth Stern prime. * 137 is a pythagorean prime. * 137 is a strong prime in the sense that it is more than the arithmetic mean of its two neighboring primes. * Using two radii to divide a circle according to the golden ratio yields sectors of approximately 137° (the golden angle) and 222°. * 137 is a strictly non-palindromic number and a primeval number.
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