About the Number 255 (two hundred fifty-five)

The number 255 was 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

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