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56682017 = 78097431
BaseRepresentation
bin1101100000111…
…0011000100001
310221122202002222
43120032120201
5104002311032
65342520425
71255534460
oct330163041
9127582088
1056682017
1129aa5047
1216b96115
13b987972
1477569d7
154e99a12
hex360e621

56682017 has 4 divisors (see below), whose sum is σ = 64779456. Its totient is φ = 48584580.

The previous prime is 56682013. The next prime is 56682019. The reversal of 56682017 is 71028665.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71028665 = 514205733.

It is a cyclic number.

It is not a de Polignac number, because 56682017 - 22 = 56682013 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56682011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4048709 + ... + 4048722.

It is an arithmetic number, because the mean of its divisors is an integer number (16194864).

Almost surely, 256682017 is an apocalyptic number.

It is an amenable number.

56682017 is a deficient number, since it is larger than the sum of its proper divisors (8097439).

56682017 is an equidigital number, since it uses as much as digits as its factorization.

56682017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8097438.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 56682017 is about 7528.7460443290. The cubic root of 56682017 is about 384.1331302896.

The spelling of 56682017 in words is "fifty-six million, six hundred eighty-two thousand, seventeen".

Divisors: 1 7 8097431 56682017