407was the smallest37-smoothnumber that didn't have a nBAB when the 37-Smooth Numbers nBAB collection was created on 29 February 2016.MathBabbler Number Analyst (MBNA) output: ========================================= 407 is a natural, whole, integer 407 is odd 407 proper divisors are: 1,11,37, 407 has 3 proper divisors 407 is deficient (sum of divisors is 49; ratio: 0.120393) 407 is unhappy 407 is a Squarefree Number 407 is Harshad (Niven) number 407 is composite (not prime) 407 has the prime factors: 11*37 (sum=48) 407 is semiprime (biprime or 2-almost prime) 407 is a 37-smooth number 407 is narcissistic 407 is Arithmetic (A003601) 407 is the sum of 3 consecutive primes 407 = 131 + 137 + 139 407 in octal is 0627 407 in hexadecimal is 0x197 407 in binary is 110010111 (is evil) 407 nearest square numbers: -7...34 (400...441 [21]) sqrt(407) = 20.1742 ln(407) = 6.00881 log(407) = 2.60959 407 reciprocal is .00245700245700245700245700245700 407! is 1.12473e+887 407 is 129.552 Pi years 407 is 20 score and 7 years 407 written as a Roman numeral is CDVII 407 is 204^2 - 203^2 and 204 + 203 = 407

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

**Created:** 03 March 2016 (posted 09 March 2016)

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