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56682831 = 318894277
BaseRepresentation
bin1101100000111…
…0100101001111
310221122210020010
43120032211033
5104002322311
65342524303
71255540032
oct330164517
9127583203
1056682831
1129aa5717
1216b96693
13b98814a
147757019
154e99da6
hex360e94f

56682831 has 4 divisors (see below), whose sum is σ = 75577112. Its totient is φ = 37788552.

The previous prime is 56682827. The next prime is 56682839. The reversal of 56682831 is 13828665.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56682831 - 22 = 56682827 is a prime.

It is a super-2 number, since 2×566828312 = 6425886660349122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56682831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56682839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9447136 + ... + 9447141.

It is an arithmetic number, because the mean of its divisors is an integer number (18894278).

Almost surely, 256682831 is an apocalyptic number.

56682831 is a deficient number, since it is larger than the sum of its proper divisors (18894281).

56682831 is a wasteful number, since it uses less digits than its factorization.

56682831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18894280.

The product of its digits is 69120, while the sum is 39.

The square root of 56682831 is about 7528.8001036022. The cubic root of 56682831 is about 384.1349691025.

The spelling of 56682831 in words is "fifty-six million, six hundred eighty-two thousand, eight hundred thirty-one".

Divisors: 1 3 18894277 56682831