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56512807104 = 2631343526543
BaseRepresentation
bin110100101000011011…
…010000000011000000
312101212110211001101210
4310220123100003000
51411214234311404
641543413330120
74040303635365
oct645033200300
9171773731353
1056512807104
1121a70008466
12ab52036940
135438156040
142a416aa46c
15170b525689
hexd286d00c0

56512807104 has 112 divisors (see below), whose sum is σ = 164770360832. Its totient is φ = 16984138752.

The previous prime is 56512807103. The next prime is 56512807157. The reversal of 56512807104 is 40170821565.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (56512807103) 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, 155944 + ... + 370599.

It is an arithmetic number, because the mean of its divisors is an integer number (1471163936).

Almost surely, 256512807104 is an apocalyptic number.

It is an amenable number.

56512807104 is an abundant number, since it is smaller than the sum of its proper divisors (108257553728).

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

56512807104 is a wasteful number, since it uses less digits than its factorization.

56512807104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526614 (or 526604 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 56512807104 in words is "fifty-six billion, five hundred twelve million, eight hundred seven thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 43 48 52 64 78 86 96 104 129 156 172 192 208 258 312 344 416 516 559 624 688 832 1032 1118 1248 1376 1677 2064 2236 2496 2752 3354 4128 4472 6708 8256 8944 13416 17888 26832 35776 53664 107328 526543 1053086 1579629 2106172 3159258 4212344 6318516 6845059 8424688 12637032 13690118 16849376 20535177 22641349 25274064 27380236 33698752 41070354 45282698 50548128 54760472 67924047 82140708 90565396 101096256 109520944 135848094 164281416 181130792 219041888 271696188 294337537 328562832 362261584 438083776 543392376 588675074 657125664 724523168 883012611 1086784752 1177350148 1314251328 1449046336 1766025222 2173569504 2354700296 3532050444 4347139008 4709400592 7064100888 9418801184 14128201776 18837602368 28256403552 56512807104