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56387361 = 397193771
BaseRepresentation
bin1101011100011…
…0011100100001
310221002202220210
43113012130201
5103413343421
65332324333
71253166432
oct327063441
9127082823
1056387361
1129913728
1216a736a9
13b8b3804
1476bb489
154e3c576
hex35c6721

56387361 has 8 divisors (see below), whose sum is σ = 75958624. Its totient is φ = 37203840.

The previous prime is 56387323. The next prime is 56387369. The reversal of 56387361 is 16378365.

56387361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-56387361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56387369) 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 7 ways as a sum of consecutive naturals, for example, 96595 + ... + 97176.

It is an arithmetic number, because the mean of its divisors is an integer number (9494828).

Almost surely, 256387361 is an apocalyptic number.

It is an amenable number.

56387361 is a deficient number, since it is larger than the sum of its proper divisors (19571263).

56387361 is a wasteful number, since it uses less digits than its factorization.

56387361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193871.

The product of its digits is 90720, while the sum is 39.

The square root of 56387361 is about 7509.1518162839. The cubic root of 56387361 is about 383.4663472026.

The spelling of 56387361 in words is "fifty-six million, three hundred eighty-seven thousand, three hundred sixty-one".

Divisors: 1 3 97 291 193771 581313 18795787 56387361