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56600161 = 337167953
BaseRepresentation
bin1101011111101…
…0011001100001
310221111120211021
43113322121201
5103442201121
65341045441
71255044022
oct327723141
9127446737
1056600161
1129a495a2
1216b56881
13b959627
147734c49
154e80641
hex35fa661

56600161 has 4 divisors (see below), whose sum is σ = 56768452. Its totient is φ = 56431872.

The previous prime is 56600143. The next prime is 56600233. The reversal of 56600161 is 16100665.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36966400 + 19633761 = 6080^2 + 4431^2 .

It is a cyclic number.

It is not a de Polignac number, because 56600161 - 29 = 56599649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56600101) 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, 83640 + ... + 84313.

It is an arithmetic number, because the mean of its divisors is an integer number (14192113).

Almost surely, 256600161 is an apocalyptic number.

It is an amenable number.

56600161 is a deficient number, since it is larger than the sum of its proper divisors (168291).

56600161 is a wasteful number, since it uses less digits than its factorization.

56600161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168290.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 56600161 is about 7523.3078496098. The cubic root of 56600161 is about 383.9481289346.

The spelling of 56600161 in words is "fifty-six million, six hundred thousand, one hundred sixty-one".

Divisors: 1 337 167953 56600161