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56060921858 = 21674232
BaseRepresentation
bin110100001101011111…
…011100100000000010
312100200222111220101012
4310031133130200002
51404303043444413
641430512040522
74023145654604
oct641537344002
9170628456335
1056060921858
1121858a24387
12aa46833142
135395649216
1429db67b174
1516d1a137a8
hexd0d7dc802

56060921858 has 6 divisors (see below), whose sum is σ = 84091885059. Its totient is φ = 28030293506.

The previous prime is 56060921857. The next prime is 56060921909. The reversal of 56060921858 is 85812906065.

It can be written as a sum of positive squares in only one way, i.e., 28030460929 + 28030460929 = 167423^2 + 167423^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=167423.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56060921857) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 251135 + ... + 418557.

Almost surely, 256060921858 is an apocalyptic number.

56060921858 is a deficient number, since it is larger than the sum of its proper divisors (28030963201).

56060921858 is an frugal number, since it uses more digits than its factorization.

56060921858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334848 (or 167425 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 50.

Multiplying 56060921858 by its sum of digits (50), we get a square (2803046092900 = 16742302).

The spelling of 56060921858 in words is "fifty-six billion, sixty million, nine hundred twenty-one thousand, eight hundred fifty-eight".

Divisors: 1 2 167423 334846 28030460929 56060921858