### About the Number 10,000 (ten thousand)

While posting a nBAB for the number 9999, MathBabbler noticed there wasn't a nBAB for the number 10,000.

```MathBabbler Number Analyst (MBNA) output:
=========================================
10000 is a natural, whole, integer
10000 is even
10000 proper divisors are: 1,2,4,5,8,10,16,20,25,40,50,80,100,125,200,
250,400,500,625,1000,1250,2000,2500,5000,
10000 is refactorable (evenly divisable  by # of divisors)
10000 has 24 proper divisors
10000 is abundant (sum of divisors is 14211; ratio: 1.4211)
10000 is happy
10000 is not a Squarefree Number: 4,16,25,100,400,625,2500,10000,
10000 is Harshad (Niven) number
10000 is composite (not prime)
10000 has the prime factors: 2*2*2*2*5*5*5*5 (sum=28)
10000 is powerful (100^2*1^3)
10000 is not in A038853
10000 in octal is 023420
10000 in hexadecimal is 0x2710
10000 in binary is 10011100010000 (is odious)
10000 nearest square numbers: 10000 is square (not odd square/not centered octagonal
sqrt(10000) = 100
ln(10000) = 9.21034
log(10000) = 4
10000 is 10^4
10000 is 100^2
10000 reciprocal is .00010000000000000000000000000000
10000 is an apocalyptic power
10000! is inf
10000 is 3183.1 Pi years
10000 is 500 scoreyears
10000 is 2501^2 - 2499^2 and 2 * (2501 + 2499)
10000 is a multiple of 1 & it contains a 1 (A011531)
10000 is a multiple of 10 & it contains a 10 (A121030)
10000 is a multiple of 100 & it contains a 100
10000 is a multiple of 1000 & it contains a 1000
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 08 May 2015 