### About the Number 8200 (eight thousand two hundred)

GDT uses FreeFind.com as the search engine on his Learning About Computing website. GDT received the following email message from FreeFind.com on 26 September 2011.

```   Our search engine has finished indexing your site:
Site URL: http://shell.deru.com/gdt/
```

It was the first time GDT's website had more than 8200 pages read.

```   MathBabbler Number Analyst (MBNA) output:
=========================================
8200 is a natural, whole, integer
8200 is even
8200 proper divisors are: 1,2,4,5,8,10,20,25,40,41,50,82,100,164,
200,205,328,410,820,1025,1640,2050,4100,
8200 is abundant (sum of divisors is 11330)
8200 is happy
8200 is a Harshad number
8200 is not prime
8200 has the prime factors: 2*2*2*5*5*41 (sum=57)
8200 sum of prime factors is: 57
8200 in octal is 020010
8200 in hexadecimal is 0x2008
8200 in binary is 10000000001000 (is evil)
8200 nearest square numbers: -100...81 (8100...8281 )
sqrt(8200) = 90.5539
ln(8200) = 9.01189
log(8200) = 3.91381
8200 reciprocal is .00012195121951219512195121951219
8200 is an apocalyptic power
8200! is inf
8200 is 2610.14 Pi years
8200 is 410 scoreyears
8200 = 2051^2 - 2049^2 and 2 * (2051 + 2049) = 8200
```

`8200` is 10^2 greater than 90^2 and 9^2 less than 91^2.

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 26 September 2011 