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56861633260 = 22519808118517
BaseRepresentation
bin110100111101001101…
…111010101011101100
312102202210012020221001
4310331031322223230
51412423034231020
642042154050044
74052040623305
oct647515725354
9172683166831
1056861633260
1122129a00743
12b02aa19924
1354924bab53
142a75b4d7ac
15172be7b50a
hexd3d37aaec

56861633260 has 48 divisors (see below), whose sum is σ = 125716479840. Its totient is φ = 21543736320.

The previous prime is 56861633251. The next prime is 56861633273. The reversal of 56861633260 is 6233616865.

It is a self number, because there is not a number n which added to its sum of digits gives 56861633260.

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, 3061522 + ... + 3080038.

It is an arithmetic number, because the mean of its divisors is an integer number (2619093330).

Almost surely, 256861633260 is an apocalyptic number.

It is an amenable number.

56861633260 is an abundant number, since it is smaller than the sum of its proper divisors (68854846580).

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

56861633260 is a wasteful number, since it uses less digits than its factorization.

56861633260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26626 (or 26624 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 56861633260 in words is "fifty-six billion, eight hundred sixty-one million, six hundred thirty-three thousand, two hundred sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 8081 16162 18517 32324 37034 40405 74068 80810 92585 153539 161620 185170 307078 351823 370340 614156 703646 767695 1407292 1535390 1759115 3070780 3518230 7036460 149635877 299271754 598543508 748179385 1496358770 2843081663 2992717540 5686163326 11372326652 14215408315 28430816630 56861633260