The BAB count was

4145at the start of the Spring 2015 Semester. This nBAB about the number4145was BAB# 4147.MathBabbler Number Analyst (MBNA) output: ========================================= 4145 is a natural, whole, integer 4145 is odd 4145 proper divisors are: 1,5,829, 4145 has 3 proper divisors 4145 is deficient (sum of divisors is 835; ratio: 0.201448) 4145 is unhappy 4145 is a Squarefree Number 4145 is composite (not prime) 4145 has the prime factors: 5*829 (sum=834) 4145 is semiprime (biprime or 2-almost prime) 4145 is Arithmetic (A003601) 4145 is the sum of 9 consecutive primes 4145 = 439 + 443 + 449 + 457 + 461 + 463 + 467 + 479 + 487 4145 is not in A038853 4145 in octal is 010061 4145 in hexadecimal is 0x1031 4145 in binary is 1000000110001 (is evil) 4145 nearest square numbers: -49...80 (4096...4225 [65]) sqrt(4145) = 64.3817 ln(4145) = 8.32966 log(4145) = 3.61752 4145 reciprocal is .00024125452352231604342581423401 4145 is an apocalyptic power 4145! is inf 4145 is 1319.39 Pi years 4145 is 207 score and 5 years 4145 is 2073^2 - 2072^2 and 2073 + 2072 = 4145 4145 is a multiple of 1 & it contains a 1 (A011531) 4145 is a multiple of 5 & it contains a 5 (A121025)

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

**Created:** 12 January 2015

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