MathBabbler was doing a computing bit about the history of Unix and the Internet and he came across RFC

`.`

861MathBabbler Number Analyst (MBNA) output: ========================================= 861 is a natural, whole, integer 861 is odd 861 proper divisors are: 1,3,7,21,41,123,287, 861 is deficient (sum of divisors is 483) 861 is unhappy 861 is not a Harshad number 861 is not prime 861 has the prime factors: 3*7*41 (sum=51) 861 is sphenic (had 3 unique prime factors) 861 is a Smith number 861 sum of prime factors is: 51 861 in octal is 01535 861 in hexadecimal is 0x35d 861 in binary is 1101011101 (is odious) 861 nearest square numbers: -20...39 (841...900 [30]) sqrt(861) = 29.3428 ln(861) = 6.75809 log(861) = 2.935 861 reciprocal is .00116144018583042973286875725900 861 is an apocalyptic power 861! is 9.47977e+2154 861 is 274.065 Pi years 861 is 43 score and 1 year 861 written as a Roman numeral is DCCCLXI

`log`

, which rounded to the nearest hundredth (2.72) approximates_{12}(861) = 2.71966e(2.7182818284590) rounded to the nearest hundredth (2.72).

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

**Created:** 07 September 2009

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