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56647141 = 199284659
BaseRepresentation
bin1101100000010…
…1110111100101
310221120222021021
43120011313211
5104000202031
65342051141
71255331005
oct330056745
9127528237
1056647141
1129a80921
1216b79ab1
13b974b25
147748005
154e8e511
hex3605de5

56647141 has 4 divisors (see below), whose sum is σ = 56932000. Its totient is φ = 56362284.

The previous prime is 56647133. The next prime is 56647159. The reversal of 56647141 is 14174665.

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.

It is a cyclic number.

It is not a de Polignac number, because 56647141 - 23 = 56647133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56647097 and 56647106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56647841) 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, 142131 + ... + 142528.

It is an arithmetic number, because the mean of its divisors is an integer number (14233000).

Almost surely, 256647141 is an apocalyptic number.

It is an amenable number.

56647141 is a deficient number, since it is larger than the sum of its proper divisors (284859).

56647141 is a wasteful number, since it uses less digits than its factorization.

56647141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284858.

The product of its digits is 20160, while the sum is 34.

The square root of 56647141 is about 7526.4294987730. The cubic root of 56647141 is about 384.0543294259.

The spelling of 56647141 in words is "fifty-six million, six hundred forty-seven thousand, one hundred forty-one".

Divisors: 1 199 284659 56647141