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56384657 = 78054951
BaseRepresentation
bin1101011100010…
…1110010010001
310221002122012122
43113011302101
5103413302112
65332304025
71253155520
oct327056221
9127078178
1056384657
112991169a
1216a72015
13b8b2504
1476ba4b7
154e3b872
hex35c5c91

56384657 has 4 divisors (see below), whose sum is σ = 64439616. Its totient is φ = 48329700.

The previous prime is 56384651. The next prime is 56384663. The reversal of 56384657 is 75648365.

56384657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (56384651) and next prime (56384663).

It is a cyclic number.

It is not a de Polignac number, because 56384657 - 210 = 56383633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56384651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4027469 + ... + 4027482.

It is an arithmetic number, because the mean of its divisors is an integer number (16109904).

Almost surely, 256384657 is an apocalyptic number.

It is an amenable number.

56384657 is a deficient number, since it is larger than the sum of its proper divisors (8054959).

56384657 is an equidigital number, since it uses as much as digits as its factorization.

56384657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8054958.

The product of its digits is 604800, while the sum is 44.

The square root of 56384657 is about 7508.9717671596. The cubic root of 56384657 is about 383.4602175217.

The spelling of 56384657 in words is "fifty-six million, three hundred eighty-four thousand, six hundred fifty-seven".

Divisors: 1 7 8054951 56384657