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56671722107 = 7111356615107
BaseRepresentation
bin110100110001111001…
…011101101001111011
312102021112211202210122
4310301321131221323
51412030430101412
642011251403455
74044243455420
oct646171355173
9172245752718
1056671722107
1122041789680
12ab972b358b
1354620569a0
142a58835d47
15171a466572
hexd31e5da7b

56671722107 has 16 divisors (see below), whose sum is σ = 76090705152. Its totient is φ = 40762876320.

The previous prime is 56671722103. The next prime is 56671722187. The reversal of 56671722107 is 70122717665.

It is a cyclic number.

It is not a de Polignac number, because 56671722107 - 22 = 56671722103 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (56671722103) 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, 28306553 + ... + 28308554.

It is an arithmetic number, because the mean of its divisors is an integer number (4755669072).

Almost surely, 256671722107 is an apocalyptic number.

56671722107 is a deficient number, since it is larger than the sum of its proper divisors (19418983045).

56671722107 is a wasteful number, since it uses less digits than its factorization.

56671722107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56615138.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 56671722107 in words is "fifty-six billion, six hundred seventy-one million, seven hundred twenty-two thousand, one hundred seven".

Divisors: 1 7 11 13 77 91 143 1001 56615107 396305749 622766177 735996391 4359363239 5151974737 8095960301 56671722107