About the Number 15000 (fifteen thousand)

The DJIA closed above 15,000 for the first time ever on 7 May 2013.

```MathBabbler Number Analyst (MBNA) output:
=========================================
15000 is a natural, whole, integer
15000 is even
15000 proper divisors are: 1,2,3,4,5,6,8,10,12,15,20,24,25,30,40,
50,60,75,100,120,125,150,200,250,300,
375,500,600,625,750,1000,1250,1500,1875,
2500,3000,3750,5000,7500,
15000 is refactorable (evenly divisable by # of divisors)
15000 is abundant (sum of divisors is 31860)
15000 is unhappy
15000 is not a Squarefree Number: 4,25,100,625,2500,
15000 is not prime
15000 has the prime factors: 2*2*2*3*5*5*5*5 (sum=29)
15000 in octal is 035230
15000 in binary is 11101010011000 (is odious)
15000 nearest square numbers: -116...129 (14884...15129 [123])
sqrt(15000) = 122.474
ln(15000) = 9.61581
log(15000) = 4.17609
15000 reciprocal is .00006666666666666666666666666666
15000 is an apocalyptic power
15000! is inf
15000 is 4774.65 Pi years
15000 is 750 scoreyears
15000 = 3751^2 - 3749^2 and 2 * (3751 + 3749) = 15000
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 09 May 2013