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56087632019 = 220725413517
BaseRepresentation
bin110100001111000101…
…010101100010010011
312100202211202220211102
4310033011111202103
51404331413211034
641433304335015
74023622002026
oct641705254223
9170684686742
1056087632019
11218720080a1
12aa5377446b
13539b03b953
142a010311bd
1516d403c97e
hexd0f155893

56087632019 has 4 divisors (see below), whose sum is σ = 56113047744. Its totient is φ = 56062216296.

The previous prime is 56087632009. The next prime is 56087632021. The reversal of 56087632019 is 91023678065.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56087632019 is a prime.

It is a super-2 number, since 2×560876320192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56087632009) 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, 12704552 + ... + 12708965.

It is an arithmetic number, because the mean of its divisors is an integer number (14028261936).

Almost surely, 256087632019 is an apocalyptic number.

56087632019 is a deficient number, since it is larger than the sum of its proper divisors (25415725).

56087632019 is a wasteful number, since it uses less digits than its factorization.

56087632019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25415724.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 56087632019 in words is "fifty-six billion, eighty-seven million, six hundred thirty-two thousand, nineteen".

Divisors: 1 2207 25413517 56087632019