About the Number 19,000 (nineteen thousand)

The DJIA closed at 19,023.87 on 22 November 2016. This marked the first time the DJIA ever closed above 19,000.

MathBabbler Number Analyst (MBNA) output:
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19000 is natural, counting, whole, integer
19000 is even (not odd)
19000 proper divisors are: 1,2,4,5,8,10,19,20,25,38,40,50,76,95,100,
                           125,152,190,200,250,380,475,500,760,950,
                           1000,1900,2375,3800,4750,9500,
19000 has 31 proper divisors
19000 is abundant (sum of divisors is 27800; ratio: 1.46316)
19000 is happy
19000 is not a Squarefree Number: 4,25,100,
19000 is Harshad (Niven) number
19000 is composite (not prime)
19000 has the prime factors: 2*2*2*5*5*5*19 (sum=40)
19000 is a 19-smooth number
19000 is *not* arithmetic (A003601)
19000 is in A038853 (multiple of 5 & diff. of 2 cubes 30^3-20^3)
19000 in octal is 045070
19000 in hexadecimal is 0x4a38
19000 in binary is 100101000111000 (is evil)
19000 nearest square numbers: -231...44 (18769...19044 [138])
sqrt(19000) = 137.84
ln(19000) = 9.85219
log(19000) = 4.27875
19000 is an apocalyptic power (2^19000 contains 666)
19000! is inf
19000 is 6047.89 Pi years
19000 is 950 scoreyears
19000 is 4751^2 - 4749^2 and 2 * (4751 + 4749)
19000 is a multiple of 1 & it contains a 1 (A011531)
19000 is a multiple of 19 & it contains a 19 (A121039)
19000 is a multiple of 190 & it contains a 190
19000 is a multiple of 1900 & it contains a 1900
                         __________________
19000 reciprocal is 0.000052631578947368421
remainders: 
1,10,100,1000,10000,5000,12000,6000,3000,11000,15000,17000,
18000,9000,14000,7000,13000,16000,8000,4000,2000,1000

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 02 March 2017

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