### About the Number 50 (fifty)

MathBabbler turned `50` years young during May of 2007.

```   50 is a real, positive, even, whole, integer number
50 is 5-squared doubled
50 is one more than 7-squared
50 is the sum of 10 fives (or 10 * 5)
50 is the sum of five 10s (or 5 * 10)
50 is half a century
50 is 50% of a century
50 is 1^2 + 7^2 and it is 5^2 + 5^2
50 is 3^2 + 4^2 + 5^2
50 is the roman numeral L
50 in binary is 110010
50 is a valid octal number; 508 = 4010
50 is a valid hexadecimal number;  5016 = 8010
```

Hawaii is the 50th state (admitted to the Union in 1959).

Ulysses S. Grant is on the U.S. \$50 bill.

Grandmaster Flash (of the Grandmaster Flash and The Furious Five) turned 50 on 1 January 2008. Flash is an old-school hip-hop artist while 50 Cent is an American rapper. Flash was 17 when 50 Cent was born. 50 Cent was born almost two months after MathBabbler graduated high-school in 1975. 50 Cent could change his name to Half Dollar.

A 50th anniversity is called the "golden anniversity." At the start of 2008, 50 ounces of gold was worth approximately \$41,665.

##### Update::2008.08.10

Bernie Mac died on 9 August 2008 at the age of 50.

Since the time this BAB was created (January, 2008), the MathBabbler Number Analyst was written.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
50 is a natural, whole, integer
50 is even
50 proper divisors are: 1,2,5,10,25,
50 is deficient (sum of divisors is 43)
50 is unhappy
50 is not prime
50 is undulating
50 has the prime factors: 2*5*5
50 in octal is 062
50 in binary is 110010 (is odious)
50 nearest square numbers: -1...14 (49...64 [8])
sqrt(50) = 7.07107
ln(50) = 3.91202
log(50) = 1.69897
50 reciprocal is .02
50 is 15.9155 Pi years
50 is 2 score and 10 years
```
##### Update::2009.01.05

Alaska turned `50` on 3 January 2009.

Alaska was the 49th state. Coincidentally, this nBAB was created the day before Alaska turned 49; however, this coincidence wasn't observed until this update about Alaska turning `50` was posted.

##### Update::2009.06.25

Pop star Michael Jackson died on 25 June 2009 at the age of `50`.

The MBNA was updated since the last time this nBAB was updated and the following are a couple additional MBNA outputs for the number `50`.

```   50 and 49 are a Ruth-Aaron pair (distinct prime factors)
50 written as a Roman numeral is L
```

In addition, `5011` (`50` in base-11) is repdigit number 55 (in base-10).

`[WolframAlpha.com]` `50` equals 559.

`[NumberGossip.com]` `50` is the "smallest number that can be written as the sum of two squares in two distinct ways." (1^2 + 7^2 and 5^2 + 5^2)

##### Update::2009.07.03

Billy Mays was a popular "American television direct-response advertisement salesperson" and he died on 28 June 2009 at the age of `50`.

##### Update::2009.08.21

Hawaii was admitted to the Union on 21 August 1959 (i.e. `50` years from 21 August 2009). In addition, Hawaii is the `50`th state.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 02 January 2008