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56386885 = 513218537
BaseRepresentation
bin1101011100011…
…0010101000101
310221002202021011
43113012111011
5103413340020
65332322221
71253165152
oct327062505
9127082234
1056386885
1129913335
1216a73371
13b8b3529
1476bb229
154e3c35a
hex35c6545

56386885 has 8 divisors (see below), whose sum is σ = 67723416. Its totient is φ = 45070080.

The previous prime is 56386877. The next prime is 56386903. The reversal of 56386885 is 58868365.

56386885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28740321 + 27646564 = 5361^2 + 5258^2 .

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

It is not a de Polignac number, because 56386885 - 23 = 56386877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2337 + ... + 10873.

It is an arithmetic number, because the mean of its divisors is an integer number (8465427).

Almost surely, 256386885 is an apocalyptic number.

It is an amenable number.

56386885 is a deficient number, since it is larger than the sum of its proper divisors (11336531).

56386885 is a wasteful number, since it uses less digits than its factorization.

56386885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9863.

The product of its digits is 1382400, while the sum is 49.

The square root of 56386885 is about 7509.1201215589. The cubic root of 56386885 is about 383.4652681753.

The spelling of 56386885 in words is "fifty-six million, three hundred eighty-six thousand, eight hundred eighty-five".

Divisors: 1 5 1321 6605 8537 42685 11277377 56386885