291 was the smallest number that didn't have a nBAB on 14 April 2016. MathBabbler is trying to ensure that the numbers 0-300 have nBABs by the end of the Spring 2016 Semester. With the posting of this nBAB for 291, 292 became the smallest number without a nBAB on 14 April 2016.
MathBabbler Number Analyst (MBNA) output: ========================================= 291 is a natural, whole, integer 291 is odd 291 proper divisors are: 1,3,97, 291 has 3 proper divisors 291 is deficient (sum of divisors is 101; ratio: 0.347079) 291 is happy 291 is a Squarefree Number 291 is composite (not prime) 291 has the prime factors: 3*97 (sum=100) 291 is semiprime (biprime or 2-almost prime) 291 is a 97-smooth number 291 is Arithmetic (A003601) 291 in octal is 0443 291 in hexadecimal is 0x123 291 in binary is 100100011 (is evil) 291 nearest square numbers: -2...33 (289...324 [18]) sqrt(291) = 17.0587 ln(291) = 5.67332 log(291) = 2.46389 291 reciprocal is .00343642611683848797250859106529 291! is 1.7552e+592 291 is 92.6282 Pi years 291 is 14 score and 11 years 291 written as a Roman numeral is CCXCI 291 is 146^2 - 145^2 and 146 + 145 = 291 291 is a multiple of 1 & it contains a 1 (A011531)
Creator: Gerald Thurman
[gthurman@gmail.com]
Created: 14 April 2016