Olympic champion Michael Phelps got caught smoking weed at the age of

`.`

23MathBabbler Number Analyst (MBNA) output: ========================================= 23 is a natural, whole, integer 23 is odd 23 is deficient (sum of divisors is 1) 23 is happy 23 is not a Harshad number 23 is prime ...Cousin prime with 19 ...Safe prime with 11 ...Sexy prime with 29 ...Sexy prime with 17 ...Sophie Germain prime with 47 ...OEIS:002145 (4n+3; n=5) ...Left-truncatable ...Right-truncatable ...prime triplet {17, 19, 23} 23 is undulating 23 in octal is 027 23 in hexadecimal is 0x17 23 in binary is 10111 (is evil) 23 nearest square numbers: -7...2 (16 [4]...25 [5]) sqrt(23) = 4.79583 ln(23) = 3.13549 log(23) = 1.36173 23 reciprocal is .04347826086956521739130434782608 23! is 2.5852e+22 23 is 7.32113 Pi years 23 is 1 score and 3 years 23 written as a Roman numeral is XXIII

`[Wikipedia]`

`! is`

23`digits long.`

23

`[Wikipedia]`

The first six digits of Pi (3.14159) sum to`.`

23

`[Wikipedia]`

Human sex cells have`chromosomes.`

23

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

**Created:** 03 February 2009

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