The number

`was the smallest number that didn't have a nBAB on 26 April 2016. After this nBAB for`

305`was posted, the number 306 was the smallest number without a nBAB.`

305MathBabbler Number Analyst (MBNA) output: ========================================= 305 is a natural, whole, integer 305 is odd 305 proper divisors are: 1,5,61, 305 has 3 proper divisors 305 is deficient (sum of divisors is 67; ratio: 0.219672) 305 is unhappy 305 is a Squarefree Number 305 is composite (not prime) 305 has the prime factors: 5*61 (sum=66) 305 is semiprime (biprime or 2-almost prime) 305 is a 61-smooth number 305 is Arithmetic (A003601) 305 in octal is 0461 305 in hexadecimal is 0x131 305 in binary is 100110001 (is evil) 305 nearest square numbers: -16...19 (289...324 [18]) sqrt(305) = 17.4642 ln(305) = 5.72031 log(305) = 2.4843 305 reciprocal is .00327868852459016393442622950819 305! is 7.81614e+626 305 is 97.0845 Pi years 305 is 15 score and 5 years 305 written as a Roman numeral is CCCV 305 is 153^2 - 152^2 and 153 + 152 = 305 305 is a multiple of 5 & it contains a 5 (A121025)

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

**Created:** 26 April 2016

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