### About the Number 215 (two hundred fifteen)

215 was the smallest number that didn't have a nBAB for it after checking for OEIS::A038853 integers was added to the MBNA.

```MathBabbler Number Analyst (MBNA) output:
=========================================
215 is a natural, whole, integer
215 is odd
215 proper divisors are: 1,5,43,
215 has 3 proper divisors
215 is deficient (sum of divisors is 49; ratio: 0.227907)
215 is unhappy
215 is a Squarefree Number
215 is composite (not prime)
215 has the prime factors: 5*43 (sum=48)
215 is semiprime (biprime or 2-almost prime)
215 is in A038853 (6^3 - 1^3)
215 in octal is 0327
215 in binary is 11010111 (is evil)
215 nearest square numbers: -19...10 (196...225 [15])
sqrt(215) = 14.6629
ln(215) = 5.37064
log(215) = 2.33244
215 reciprocal is .00465116279069767441860465116279
215 is 68.4366 Pi years
215 is 10 score and 15 years
215 written as a Roman numeral is CCXV
215 is 108^2 - 107^2 and 108 + 107 = 215
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 12 May 2014