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23015012000 = 25536079479
BaseRepresentation
bin10101011011110011…
…010011011010100000
32012101221210202011212
4111123303103122200
5334113320341000
614323431325252
71443222242231
oct253363233240
965357722155
1023015012000
119840413182
124563820828
13222a2170c6
1411848b9088
158ea7c7c35
hex55bcd36a0

23015012000 has 96 divisors (see below), whose sum is σ = 56647019520. Its totient is φ = 9189868800.

The previous prime is 23015011993. The next prime is 23015012021. The reversal of 23015012000 is 21051032.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2423261 + ... + 2432739.

It is an arithmetic number, because the mean of its divisors is an integer number (590073120).

Almost surely, 223015012000 is an apocalyptic number.

23015012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23015012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28323509760).

23015012000 is an abundant number, since it is smaller than the sum of its proper divisors (33632007520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23015012000 is an equidigital number, since it uses as much as digits as its factorization.

23015012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111 (or 10093 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

Adding to 23015012000 its reverse (21051032), we get a palindrome (23036063032).

The spelling of 23015012000 in words is "twenty-three billion, fifteen million, twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 607 800 1000 1214 2000 2428 3035 4000 4856 6070 9479 9712 12140 15175 18958 19424 24280 30350 37916 47395 48560 60700 75832 75875 94790 97120 121400 151664 151750 189580 236975 242800 303328 303500 379160 473950 485600 607000 758320 947900 1184875 1214000 1516640 1895800 2369750 2428000 3791600 4739500 5753753 7583200 9479000 11507506 18958000 23015012 28768765 37916000 46030024 57537530 92060048 115075060 143843825 184120096 230150120 287687650 460300240 575375300 719219125 920600480 1150750600 1438438250 2301501200 2876876500 4603002400 5753753000 11507506000 23015012000