This nBAB for the number

2015was created on 1 January 2015 and it was nBAB# 700.MathBabbler Number Analyst (MBNA) output: ========================================= 2015 is a natural, whole, integer 2015 is odd 2015 proper divisors are: 1,5,13,31,65,155,403, 2015 has 7 proper divisors 2015 is deficient (sum of divisors is 673; ratio: 0.333995) 2015 is unhappy 2015 is a Squarefree Number 2015 is composite (not prime) 2015 has the prime factors: 5*13*31 (sum=49) 2015 is sphenic (had 3 unique prime factors) 2015 is Arithmetic (A003601) 2015 is the sum of 5 consecutive primes 2015 = 389 + 397 + 401 + 409 + 419 2015 is in A038853 (14^3 - 9^3) 2015 in octal is 03737 2015 in hexadecimal is 0x7df 2015 in binary is 11111011111 (is evil)(is palindromic) 2015 nearest square numbers: -79...10 (1936...2025 [45]) sqrt(2015) = 44.8888 ln(2015) = 7.60837 log(2015) = 3.30428 2015 reciprocal is .00049627791563275434243176178660 2015 is an apocalyptic power 2015! is inf 2015 is 641.394 Pi years 2015 is 100 score and 15 years 2015 written as a Roman numeral is MMXV 2015 is 1008^2 - 1007^2 and 1008 + 1007 = 2015 2015 is a multiple of 1 & it contains a 1 (A011531) 2015 is a multiple of 5 & it contains a 5 (A121025)

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

**Created:** 01 January 2015

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