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56386838 = 228193419
BaseRepresentation
bin1101011100011…
…0010100010110
310221002202012102
43113012110112
5103413334323
65332322102
71253165054
oct327062426
9127082172
1056386838
11299132a2
1216a73332
13b8b34c1
1476bb1d4
154e3c328
hex35c6516

56386838 has 4 divisors (see below), whose sum is σ = 84580260. Its totient is φ = 28193418.

The previous prime is 56386819. The next prime is 56386867. The reversal of 56386838 is 83868365.

56386838 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.

It is a junction number, because it is equal to n+sod(n) for n = 56386792 and 56386801.

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 as a sum of consecutive naturals, namely, 14096708 + ... + 14096711.

It is an arithmetic number, because the mean of its divisors is an integer number (21145065).

Almost surely, 256386838 is an apocalyptic number.

56386838 is a deficient number, since it is larger than the sum of its proper divisors (28193422).

56386838 is a wasteful number, since it uses less digits than its factorization.

56386838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28193421.

The product of its digits is 829440, while the sum is 47.

The square root of 56386838 is about 7509.1169920304. The cubic root of 56386838 is about 383.4651616324.

The spelling of 56386838 in words is "fifty-six million, three hundred eighty-six thousand, eight hundred thirty-eight".

Divisors: 1 2 28193419 56386838