The number

255was the first number to be reported as a Mersenne number by the MBNA.MathBabbler Number Analyst (MBNA) output: ========================================= 255 is a natural, whole, integer 255 is odd 255 proper divisors are: 1,3,5,15,17,51,85, 255 has 7 proper divisors 255 is deficient (sum of divisors is 177; ratio: 0.694118) 255 is unhappy 255 is a Squarefree Number 255 is composite (not prime) 255 has the prime factors: 3*5*17 (sum=25) 255 is sphenic (had 3 unique prime factors) 255 is Mersenne 255 in octal is 0377 255 in hexadecimal is 0xff 255 in binary is 11111111 (is evil)(is palindromic) 255 nearest square numbers: -30...1 (225...256 [16]) sqrt(255) = 15.9687 ln(255) = 5.54126 log(255) = 2.40654 255 reciprocal is .00392156862745098039215686274509 255 is 81.169 Pi years 255 is 12 score and 15 years 255 written as a Roman numeral is CCLV 255 is 128^2 - 127^2 and 128 + 127 = 255

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

**Created:** 26 March 2014

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