### About the Number 36 (thirty-six)

MathBabbler learned about refactorable numbers while working on a nBAB for the number 88. The MBNA code was modified to check for refactorable numbers and while testing the code he used the number 36, which is refactorable.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
36 is a natural, whole, integer
36 is even
36 proper divisors are: 1,2,3,4,6,9,12,18,
36 is refactorable (evenly divisable by # of divisors)
36 is abundant (sum of divisors is 55)
36 is unhappy
36 is a Harshad number
36 is not prime
36 is undulating
36 has the prime factors: 2*2*3*3
36 in octal is 044
36 in hexadecimal is 0x24
36 in binary is 100100 (is evil)
36 nearest square numbers: 36 is square (36 is square)
sqrt(36) = 6
ln(36) = 3.58352
log(36) = 1.5563
36 is 6^2
36 reciprocal is .02777777777777777777777777777777
36! is 3.71993e+41
36 is 11.4592 Pi years
36 is 1 score and 16 years
```

`36` written as a Roman numeral is `XXXVI`.

`[Wikipedia tidbit]` The sum of the integers 1 to `36`, inclusive, is 666.

`[Wikipedia tidbit]` The ASCII code for `36` is the dollar sign.

##### Update::2015.02.05

The `36`th BAB for the Spring 2015 Semester was posted `36` days away from Pi Day 2015.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 13 December 2008 