The number

`was the smallest number that didn't have a nBAB on 28 April 2016. After this nBAB for`

315`was posted, the number 316 was the smallest number without a nBAB.`

315MathBabbler Number Analyst (MBNA) output: ========================================= 315 is a natural, whole, integer 315 is odd 315 proper divisors are: 1,3,5,7,9,15,21,35,45,63,105, 315 has 11 proper divisors 315 is deficient (sum of divisors is 309; ratio: 0.980952) 315 is unhappy 315 is not a Squarefree Number: 9, 315 is Harshad (Niven) number 315 is composite (not prime) 315 has the prime factors: 3*3*5*7 (sum=18) 315 is a 7-smooth number 315 is Arithmetic (A003601) 315 is a Zuckerman number 315 is a nude number 315 in octal is 0473 315 in hexadecimal is 0x13b 315 in binary is 100111011 (is evil) 315 nearest square numbers: -26...9 (289...324 [18]) sqrt(315) = 17.7482 ln(315) = 5.75257 log(315) = 2.49831 315 reciprocal is .00317460317460317460317460317460 315! is 6.50763e+651 315 is 100.268 Pi years 315 is 15 score and 15 years 315 written as a Roman numeral is CCCXV 315 is 158^2 - 157^2 and 158 + 157 = 315 315 is a multiple of 1 & it contains a 1 (A011531) 315 is a multiple of 3 & it contains a 3 (A121023) 315 is a multiple of 5 & it contains a 5 (A121025) 315 is a multiple of 15 & it contains a 15 (A121035)

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

**Created:** 28 April 2016

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