506was the smallest number without a nBAB on 16 June 2018.MathBabbler Number Analyst (MBNA) output: ========================================= 506 is natural, counting, whole, integer 506 is even (not odd) 506 proper divisors are: 1,2,11,22,23,46,253, 506 has 7 proper divisors 506 is deficient (sum of divisors is 358; ratio: 0.70751) 506 is unhappy 506 is a Squarefree Number 506 is Harshad (Niven) number 506 is composite (not prime) 506 has the prime factors: 2*11*23 (sum=36) 506 is sphenic (has 3 unique prime factors) 506 is a 23-smooth number 506 is Recaman number 270 506 is pronic (oblong) (22*23) 506 in octal is 0772 506 in hexadecimal is 0x1fa 506 in binary is 111111010 (is odious) 506 nearest square numbers: -22...23 (484...529 [23]) sqrt(506) = 22.4944 ln(506) = 6.22654 log(506) = 2.70415 506 is an apocalyptic power (2^506 contains 666) 506! is 1.98788e+1150 506 is 161.065 Pi years 506 is 25 score and 6 years 506 written as a Roman numeral is DVI ______________________ 506 reciprocal is 0.00197628458498023715415 remainders: 1,10,100,494,386,318,144,428,232,296,430,252,496,406,12,120,188,362,78,274,210,76,254,10

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

**Created:** 16 June 2018

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