### About the Number 69 (sixty-nine)

On 22 August 2008, MathBabbler's favorite baseball player of all-time, Carl Yastrzemski, turned 69 years of age.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
69 is a natural, whole, integer
69 is odd
69 proper divisors are: 1,3,23
69 is deficient (sum of divisors is 27)
69 is unhappy
69 is not a Harshad number
69 is not prime
69 is undulating
69 has the prime factors: 3*23
69 in octal is 0105
69 in hexadecimal is 0x45
69 in binary is 1000101 (is odious)
69 nearest square numbers: -5...12 (64 ...81 )
sqrt(69) = 8.30662
ln(69) = 4.23411
log(69) = 1.83885
69 reciprocal is .01449275362318840579710144927536
69 is 21.9634 Pi years
69 is 3 score and 9 years
```

Observe... `69 = 1058` and `10510 = 6916`

`69` in Roman numeral is `LXIX`.

`[Wikipedia]` "On many handheld scientific and graphing calculators, the highest factorial that can be computed within memory limitations is `69!` or `1.711224524 * 10^98`." MathBabbler has not checked to see if this is valid information; however, he did notice, via the Google calculator, that `70!` equals `1.19785717 * 10^100`. Note: `10^100` is a googol (i.e. `1000 duotrigintillion`).

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 24 August 2008 