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56863368155 = 5111815712041
BaseRepresentation
bin110100111101010100…
…100010001111011011
312102202220110101202102
4310331110202033123
51412424010240110
642042255154015
74052061440306
oct647524421733
9172686411672
1056863368155
112212a986140
12b02b51590b
135492977709
142a76081b3d
15172c1c05a5
hexd3d5223db

56863368155 has 16 divisors (see below), whose sum is σ = 74850598368. Its totient is φ = 41126688000.

The previous prime is 56863368151. The next prime is 56863368251. The reversal of 56863368155 is 55186336865.

It is not a de Polignac number, because 56863368155 - 22 = 56863368151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56863368155.

It is not an unprimeable number, because it can be changed into a prime (56863368151) 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, 2846066 + ... + 2865975.

It is an arithmetic number, because the mean of its divisors is an integer number (4678162398).

Almost surely, 256863368155 is an apocalyptic number.

56863368155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56863368155 is a deficient number, since it is larger than the sum of its proper divisors (17987230213).

56863368155 is a wasteful number, since it uses less digits than its factorization.

56863368155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712238.

The product of its digits is 15552000, while the sum is 56.

The spelling of 56863368155 in words is "fifty-six billion, eight hundred sixty-three million, three hundred sixty-eight thousand, one hundred fifty-five".

Divisors: 1 5 11 55 181 905 1991 9955 5712041 28560205 62832451 314162255 1033879421 5169397105 11372673631 56863368155