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56752401 = 318917467
BaseRepresentation
bin1101100001111…
…1100100010001
310221210022122210
43120133210101
5104012034101
65344222333
71256246616
oct330374421
9127708583
1056752401
112a042a12
121700a9a9
13b9b0a04
14777450d
154eb07d6
hex361f911

56752401 has 4 divisors (see below), whose sum is σ = 75669872. Its totient is φ = 37834932.

The previous prime is 56752393. The next prime is 56752427. The reversal of 56752401 is 10425765.

56752401 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 not a de Polignac number, because 56752401 - 23 = 56752393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56752441) 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, 9458731 + ... + 9458736.

It is an arithmetic number, because the mean of its divisors is an integer number (18917468).

Almost surely, 256752401 is an apocalyptic number.

It is an amenable number.

56752401 is a deficient number, since it is larger than the sum of its proper divisors (18917471).

56752401 is a wasteful number, since it uses less digits than its factorization.

56752401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18917470.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 56752401 is about 7533.4189449413. The cubic root of 56752401 is about 384.2920616082.

The spelling of 56752401 in words is "fifty-six million, seven hundred fifty-two thousand, four hundred one".

Divisors: 1 3 18917467 56752401