345was the smallest number that didn't have a nBAB on 17 July 2016.MathBabbler Number Analyst (MBNA) output: ========================================= 345 is natural, counting, whole, integer 345 is odd (not even) 345 proper divisors are: 1,3,5,15,23,69,115, 345 has 7 proper divisors 345 is deficient (sum of divisors is 231; ratio: 0.669565) 345 is unhappy 345 is a Squarefree Number 345 is composite (not prime) 345 has the prime factors: 3*5*23 (sum=31) 345 is sphenic (has 3 unique prime factors) 345 is a 23-smooth number 345 is Arithmetic (A003601) 345 is a ThurmNumber 345 in octal is 0531 345 in hexadecimal is 0x159 345 in binary is 101011001 (is odious) 345 nearest square numbers: -21...16 (324...361 [19]) sqrt(345) = 18.5742 ln(345) = 5.84354 log(345) = 2.53782 345! is 2.42156e+727 345 is 109.817 Pi years 345 is 17 score and 5 years 345 written as a Roman numeral is CCCXLV 345 is 173^2 - 172^2 and 173 + 172 = 345 345 is a multiple of 3 & it contains a 3 (A121023) 345 is a multiple of 5 & it contains a 5 (A121025) ______________________ 345 reciprocal is 0.00289855072463768115942

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

**Created:** 17 July 2016

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