285 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 285, 287 became the smallest number without a nBAB on 14 April 2016.
MathBabbler Number Analyst (MBNA) output: ========================================= 285 is a natural, whole, integer 285 is odd 285 proper divisors are: 1,3,5,15,19,57,95, 285 has 7 proper divisors 285 is deficient (sum of divisors is 195; ratio: 0.684211) 285 is unhappy 285 is a Squarefree Number 285 is Harshad (Niven) number 285 is composite (not prime) 285 has the prime factors: 3*5*19 (sum=27) 285 is sphenic (had 3 unique prime factors) 285 is a 19-smooth number 285 is a Moran Number 285 is a lucky number 285 is Arithmetic (A003601) 285 in octal is 0435 285 in hexadecimal is 0x11d 285 in binary is 100011101 (is odious) 285 nearest square numbers: -29...4 (256...289 [17]) sqrt(285) = 16.8819 ln(285) = 5.65249 log(285) = 2.45484 285 reciprocal is .00350877192982456140350877192982 285 is an apocalyptic power 285! is 3.04437e+577 285 is 90.7183 Pi years 285 is 14 score and 5 years 285 written as a Roman numeral is CCLXXXV 285 is 143^2 - 142^2 and 143 + 142 = 285 285 is a multiple of 5 & it contains a 5 (A121025)
Creator: Gerald Thurman
[gthurman@gmail.com]
Created: 14 April 2016