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56784075031 = 140114052821
BaseRepresentation
bin110100111000100110…
…000011100100010111
312102120101020220001001
4310320212003210113
51412243210400111
642030343444131
74050106450105
oct647046034427
9172511226031
1056784075031
112209a148032
12b008a56647
13547c403cc8
142a69720c75
15172525b1c1
hexd38983917

56784075031 has 4 divisors (see below), whose sum is σ = 56788141864. Its totient is φ = 56780008200.

The previous prime is 56784075017. The next prime is 56784075077. The reversal of 56784075031 is 13057048765.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56784075031 - 235 = 22424336663 is a prime.

It is a super-2 number, since 2×567840750312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56784075001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012400 + ... + 2040421.

It is an arithmetic number, because the mean of its divisors is an integer number (14197035466).

Almost surely, 256784075031 is an apocalyptic number.

56784075031 is a deficient number, since it is larger than the sum of its proper divisors (4066833).

56784075031 is a wasteful number, since it uses less digits than its factorization.

56784075031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066832.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 56784075031 in words is "fifty-six billion, seven hundred eighty-four million, seventy-five thousand, thirty-one".

Divisors: 1 14011 4052821 56784075031