### About the Number 426 (four hundred twenty-six)

MathBabbler moved into CM-`426` at the end of the spring 2010 semester.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
426 is a natural, whole, integer
426 is even
426 proper divisors are: 1,2,3,6,71,142,213,
426 is abundant (sum of divisors is 438)
426 is unhappy
426 is not a Harshad number
426 is not prime
426 has the prime factors: 2*3*71 (sum=76)
426 is sphenic (had 3 unique prime factors)
426 sum of prime factors is: 76
426 in octal is 0652
426 in hexadecimal is 0x1aa
426 in binary is 110101010 (is odious)
426 nearest square numbers: -26...15 (400...441 )
sqrt(426) = 20.6398
ln(426) = 6.05444
log(426) = 2.62941
426 reciprocal is .00234741784037558685446009389671
426! is 6.80643e+936
426 is 135.6 Pi years
426 is 21 score and 6 years
426 written as a Roman numeral is CDXXVI
```

`426` is an untouchable number. Note: MathBabber was 52 years of age when he moved into CM-`426` and 52 is also an untouchable number.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 05 May 2010 