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56700471880 = 23513313517399
BaseRepresentation
bin110100110011100111…
…001000101001001000
312102100112221102002001
4310303213020221020
51412110310100010
642014155520344
74045043026123
oct646347105110
9172315842061
1056700471880
1122056a35818
12aba4a590b4
135467cb18a0
142a5c59b3ba
15171cc44c3a
hexd339c8a48

56700471880 has 64 divisors (see below), whose sum is σ = 141821568000. Its totient is φ = 20260212480.

The previous prime is 56700471857. The next prime is 56700471881. The reversal of 56700471880 is 8817400765.

It is a super-2 number, since 2×567004718802 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56700471880.

It is not an unprimeable number, because it can be changed into a prime (56700471881) 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, 1742580 + ... + 1774819.

It is an arithmetic number, because the mean of its divisors is an integer number (2215962000).

Almost surely, 256700471880 is an apocalyptic number.

It is an amenable number.

56700471880 is an abundant number, since it is smaller than the sum of its proper divisors (85121096120).

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

56700471880 is a wasteful number, since it uses less digits than its factorization.

56700471880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3517454 (or 3517450 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 56700471880 in words is "fifty-six billion, seven hundred million, four hundred seventy-one thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 31 40 52 62 65 104 124 130 155 248 260 310 403 520 620 806 1240 1612 2015 3224 4030 8060 16120 3517399 7034798 14069596 17586995 28139192 35173990 45726187 70347980 91452374 109039369 140695960 182904748 218078738 228630935 365809496 436157476 457261870 545196845 872314952 914523740 1090393690 1417511797 1829047480 2180787380 2835023594 4361574760 5670047188 7087558985 11340094376 14175117970 28350235940 56700471880