### About the Number 437 (four hundred thirty-seven)

MathBabbler did an audit of the nBAB collection and the findings of that audit resulted in a change to the newnbab command and the creation of a postnbab command. 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 number 437.

```   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 )
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
```

`437` is a triple-X Roman numeral.

##### 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 `437` questions a day."

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 18 May 2011 