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51368908882 = 2113710931973
BaseRepresentation
bin101111110101110100…
…110101100001010010
311220120222122221120211
4233311310311201102
51320200420041012
635333141554334
73465653343514
oct576564654122
9156528587524
1051368908882
111a870456605
129b574159aa
134ac8553995
1426b446bbb4
151509b476a7
hexbf5d35852

51368908882 has 16 divisors (see below), whose sum is σ = 77748617880. Its totient is φ = 25452781312.

The previous prime is 51368908867. The next prime is 51368908901. The reversal of 51368908882 is 28880986315.

It can be written as a sum of positive squares in 4 ways, for example, as 34029549841 + 17339359041 = 184471^2 + 131679^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1590648 + ... + 1622620.

Almost surely, 251368908882 is an apocalyptic number.

51368908882 is a deficient number, since it is larger than the sum of its proper divisors (26379708998).

51368908882 is a wasteful number, since it uses less digits than its factorization.

51368908882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39197.

The product of its (nonzero) digits is 6635520, while the sum is 58.

The spelling of 51368908882 in words is "fifty-one billion, three hundred sixty-eight million, nine hundred eight thousand, eight hundred eighty-two".

Divisors: 1 2 113 226 7109 14218 31973 63946 803317 1606634 3612949 7225898 227296057 454592114 25684454441 51368908882