457was the smallest number without a nBAB on 31 December 2017.MathBabbler Number Analyst (MBNA) output: ========================================= 457 is natural, counting, whole, integer 457 is odd (not even) 457 is not extremely odd 457 proper divisors are: 1, 457 has 1 proper divisors 457 is deficient (sum of divisors is 1; ratio: 0.00218818) 457 is unhappy 457 is a Squarefree Number 457 is prime (not composite) ...Cousin prime with 461 ...Sexy prime with 463 ...Sexy Quadruple prime with 445, 451, 463 ...Truman Gerald (p+30) prime with 487 ...Pythagorean prime ...Strong prime ...prime triplet {457, 461, 463} 457 is the sum of 3 consecutive primes 457 = 149 + 151 + 157 457 in octal is 0711 457 in hexadecimal is 0x1c9 457 in binary is 111001001 (is odious) 457 nearest square numbers: -16...27 (441...484 [22]) sqrt(457) = 21.3776 ln(457) = 6.12468 log(457) = 2.65992 457! is 6.89053e+1018 457 is 145.468 Pi years 457 is 22 score and 17 years 457 written as a Roman numeral is CDLVII 457 is 229^2 - 228^2 and 229 + 228 = 457 ________________________________________________________________________________________________________________________________________________________ 457 reciprocal is 0.00218818380743982494529540481400437636761487964989059080962800875273522975929978118161925601750547045951859956236323851203501094091903719912472647702407 remainders: 1,10,100,86,403,374,84,383,174,369,34,340,201,182,449,377,114,226,432,207,242,135,436,247,185,22,220,372,64,183,2,20,200,172,349,291,168,309,348,281,68,223,402,364,441,297,228,452,407,414,27,270,415,37,370,44,440,287,128,366,4,40,400,344,241,125,336,161,239,105,136,446,347,271,425,137,456,447,357,371,54,83,373,74,283,88,423,117,256,275,8,80,343,231,25,250,215,322,21,210,272,435,237,85,393,274,455,437,257,285,108,166,289,148,109,176,389,234,55,93,16,160,229,5,50,43,430,187,42,420,87,413,17,170,329,91,453,417,57,113,216,332,121,296,218,352,321,11,110,186,32,320,1

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 31 December 2017

This work is licensed under a Creative Commons Attribution 3.0 United States License.