MathBabbler did an audit of the nBAB collection and the findings of that audit resulted in a change to the

newnbabcommand and the creation of apostnbabcommand. There were 435 nBABs at the time of this audit and a nBAB for the number 436 already existed; therefore, the nBAB programs were tested using the number437.MathBabbler Number Analyst (MBNA) output: ========================================= 437 is a natural, whole, integer 437 is odd 437 proper divisors are: 1,19,23, 437 is deficient (sum of divisors is 43) 437 is unhappy 437 is not a Harshad number 437 is not prime 437 has the prime factors: 19*23 (sum=42) 437 is semiprime (biprime or 2-almost prime) 437 sum of prime factors is: 42 437 in octal is 0665 437 in hexadecimal is 0x1b5 437 in binary is 110110101 (is evil) 437 nearest square numbers: -37...4 (400...441 [21]) sqrt(437) = 20.9045 ln(437) = 6.07993 log(437) = 2.64048 437 reciprocal is .00228832951945080091533180778032 437! is 6.65446e+965 437 is 139.101 Pi years 437 is 21 score and 17 years 437 written as a Roman numeral is CDXXXVII 437 = 219^2 - 218^2 and 219 + 218 = 437

`is a triple-X Roman numeral.`

437## Update::2012.06.01

On 1 June 2012, via Facebook, Mathnasium shared a photo that was posted to "Fans of Being a Mom". The photo said, " "An average four-year old child asks

`questions a day."`

437

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

**Created:** 18 May 2011

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