### About the Number 407 (four hundred seven)

407 was the smallest 37-smooth number that didn't have a nBAB when the 37-Smooth Numbers nBAB collection was created on 29 February 2016.

```MathBabbler Number Analyst (MBNA) output:
=========================================
407 is a natural, whole, integer
407 is odd
407 proper divisors are: 1,11,37,
407 has 3 proper divisors
407 is deficient (sum of divisors is 49; ratio: 0.120393)
407 is unhappy
407 is a Squarefree Number
407 is composite (not prime)
407 has the prime factors: 11*37 (sum=48)
407 is semiprime (biprime or 2-almost prime)
407 is a 37-smooth number
407 is narcissistic
407 is Arithmetic (A003601)
407 is the sum of 3 consecutive primes
407 = 131 + 137 + 139
407 in octal is 0627
407 in binary is 110010111 (is evil)
407 nearest square numbers: -7...34 (400...441 [21])
sqrt(407) = 20.1742
ln(407) = 6.00881
log(407) = 2.60959
407 reciprocal is .00245700245700245700245700245700
407! is 1.12473e+887
407 is 129.552 Pi years
407 is 20 score and 7 years
407 written as a Roman numeral is CDVII
407 is 204^2 - 203^2 and 204 + 203 = 407
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 03 March 2016 (posted 09 March 2016)