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12584007040 = 275111994079
BaseRepresentation
bin10111011100001000…
…01011010110000000
31012111000000210101211
423232010023112000
5201233001211130
65440410535504
7623562203113
oct135604132600
935430023354
1012584007040
115378386820
122532437594
131257150b17
1487540057a
154d9b7ea2a
hex2ee10b580

12584007040 has 128 divisors (see below), whose sum is σ = 34546176000. Its totient is φ = 4335114240.

The previous prime is 12584007001. The next prime is 12584007047. The reversal of 12584007040 is 4070048521.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 12584006993 and 12584007011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12584007047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86721 + ... + 180799.

It is an arithmetic number, because the mean of its divisors is an integer number (269892000).

Almost surely, 212584007040 is an apocalyptic number.

12584007040 is a gapful number since it is divisible by the number (10) 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 12584007040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17273088000).

12584007040 is an abundant number, since it is smaller than the sum of its proper divisors (21962168960).

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

12584007040 is a wasteful number, since it uses less digits than its factorization.

12584007040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94128 (or 94116 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The spelling of 12584007040 in words is "twelve billion, five hundred eighty-four million, seven thousand, forty".

Divisors: 1 2 4 5 8 10 11 16 19 20 22 32 38 40 44 55 64 76 80 88 95 110 128 152 160 176 190 209 220 304 320 352 380 418 440 608 640 704 760 836 880 1045 1216 1408 1520 1672 1760 2090 2432 3040 3344 3520 4180 6080 6688 7040 8360 12160 13376 16720 26752 33440 66880 94079 133760 188158 376316 470395 752632 940790 1034869 1505264 1787501 1881580 2069738 3010528 3575002 3763160 4139476 5174345 6021056 7150004 7526320 8278952 8937505 10348690 12042112 14300008 15052640 16557904 17875010 19662511 20697380 28600016 30105280 33115808 35750020 39325022 41394760 57200032 60210560 66231616 71500040 78650044 82789520 98312555 114400064 132463232 143000080 157300088 165579040 196625110 228800128 286000160 314600176 331158080 393250220 572000320 629200352 662316160 786500440 1144000640 1258400704 1573000880 2516801408 3146001760 6292003520 12584007040