513was the smallest number without a nBAB on 21 June 2018.MathBabbler Number Analyst (MBNA) output: ========================================= 513 is natural, counting, whole, integer 513 is odd (not even) 513 is extremely odd 513 is super extremely odd 513 proper divisors are: 1,3,9,19,27,57,171, 513 has 7 proper divisors 513 is deficient (sum of divisors is 287; ratio: 0.559454) 513 is unhappy 513 is not a Squarefree Number: 9, 513 is Harshad (Niven) number 513 is composite (not prime) 513 has the prime factors: 3*3*3*19 (sum=28) 513 is a 19-smooth number 513 is Recaman number 284 513 in octal is 01001 513 in hexadecimal is 0x201 513 in binary is 1000000001 (is evil)(is palindromic) 513 nearest square numbers: -29...16 (484...529 [23]) sqrt(513) = 22.6495 ln(513) = 6.24028 log(513) = 2.71012 513! is 1.78385e+1169 513 is 163.293 Pi years 513 is 25 score and 13 years 513 written as a Roman numeral is DXIII 513 is 257^2 - 256^2 and 257 + 256 = 513 513 is a multiple of 1 & it contains a 1 (A011531) 513 is a multiple of 3 & it contains a 3 (A121023) __________________ 513 reciprocal is 0.001949317738791423 remainders: 1,10,100,487,253,478,163,91,397,379,199,451,406,469,73,217,118,154,1

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

**Created:** 21 June 2018

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