The DJIA hit

18,000for the first time on 23 December 2014.MathBabbler Number Analyst (MBNA) output: ========================================= 18000 is a natural, whole, integer 18000 is even 18000 proper divisors are: 1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,25,30,36, 40,45,48,50,60,72,75,80,90,100,120,125,144,150, 180,200,225,240,250,300,360,375,400,450,500,600, 720,750,900,1000,1125,1200,1500,1800,2000,2250, 3000,3600,4500,6000,9000, 18000 is refactorable (evenly divisable by # of divisors) 18000 has 59 proper divisors 18000 is abundant (sum of divisors is 44868; ratio: 2.49267) 18000 is unhappy 18000 is not a Squarefree Number: 4,9,16,25,36,100,144,225,400,900,3600, 18000 is Harshad (Niven) number 18000 is composite (not prime) 18000 has the prime factors: 2*2*2*2*3*3*5*5*5 (sum=29) 18000 is the sum of 3 distinct cubes (1^3 + 18^3 + 23^3) 18000 is powerful (12^2*5^3) 18000 is not in A038853 18000 in octal is 043120 18000 in hexadecimal is 0x4650 18000 in binary is 100011001010000 (is odious) 18000 nearest square numbers: -44...225 (17956...18225 [135]) sqrt(18000) = 134.164 ln(18000) = 9.79813 log(18000) = 4.25527 18000 reciprocal is .00005555555555555555555555555555 18000 is an apocalyptic power 18000! is inf 18000 is 5729.58 Pi years 18000 is 900 scoreyears 18000 is 4501^2 - 4499^2 and 2 * (4501 + 4499) 18000 is a multiple of 1 & it contains a 1 (A011531) 18000 is a multiple of 8 & it contains a 8 (A121028) 18000 is a multiple of 18 & it contains a 18 (A121038) 18000 is a multiple of 80 & it contains a 80 18000 is a multiple of 180 & it contains a 180 18000 is a multiple of 1800 & it contains a 1800

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 23 December 2014 (posted 25 December 2014)

This work is licensed under a Creative Commons Attribution 3.0 United States License.