515 was the smallest number without a nBAB on 22 June 2018.
MathBabbler Number Analyst (MBNA) output: ========================================= 515 is natural, counting, whole, integer 515 is odd (not even) 515 is extremely odd 515 proper divisors are: 1,5,103, 515 has 3 proper divisors 515 is deficient (sum of divisors is 109; ratio: 0.21165) 515 is unhappy 515 is a Squarefree Number 515 is composite (not prime) 515 has the prime factors: 5*103 (sum=108) 515 is semiprime (biprime or 2-almost prime) 515 is a 103-smooth number 515 is Recaman number 288 515 is undulating 515 is palindromic 515 is the sum of 9 consecutive primes 515 = 41 + 43 + 47 + 53 + 59 + 61 + 67 + 71 + 73 515 is a nude number 515 in octal is 01003 515 in hexadecimal is 0x203 515 in binary is 1000000011 (is odious) 515 nearest square numbers: -31...14 (484...529 [23]) sqrt(515) = 22.6936 ln(515) = 6.24417 log(515) = 2.71181 515! is 4.72203e+1174 515 is 163.93 Pi years 515 is 25 score and 15 years 515 written as a Roman numeral is DXV 515 is 258^2 - 257^2 and 258 + 257 = 515 515 is a multiple of 1 & it contains a 1 (A011531) 515 is a multiple of 5 & it contains a 5 (A121025) __________________________________ 515 reciprocal is 0.00194174757281553398058252427184466 remainders: 1,10,100,485,215,90,385,245,390,295,375,145,420,80,285,275,175,205,505,415,30,300,425,130,270,125,220,140,370,95,435,230,240,340,310,10
Creator: Gerald Thurman
[gthurman@gmail.com]
Created: 22 June 2018