From Stetson.edu's "What's Special About This Number?"

418"has the property that the sum of its prime factors is equal to the product of its digits."MathBabbler Number Analyst (MBNA) output: ========================================= 418 is a natural, whole, integer 418 is even 418 proper divisors are: 1,2,11,19,22,38,209, 418 is deficient (sum of divisors is 302) 418 is unhappy 418 is not a Harshad number 418 is not prime 418 has the prime factors: 2*11*19 (sum=32) 418 is sphenic (had 3 unique prime factors) 418 sum of prime factors is: 32 418 in octal is 0642 418 in hexadecimal is 0x1a2 418 in binary is 110100010 (is evil) 418 nearest square numbers: -18...23 (400...441 [21]) sqrt(418) = 20.445 ln(418) = 6.03548 log(418) = 2.62118 418 reciprocal is .00239234449760765550239234449760 418! is 6.70436e+915 418 is 133.054 Pi years 418 is 20 score and 18 years 418 written as a Roman numeral is CDXVIII

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

**Created:** 05 March 2010

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