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56853161 = 151376511
BaseRepresentation
bin1101100011100…
…0001010101001
310221222102212122
43120320022221
5104023300121
65350321025
71260146441
oct330701251
9127872778
1056853161
112a101692
1217059175
13ba17831
14779d121
154ed05ab
hex36382a9

56853161 has 4 divisors (see below), whose sum is σ = 57229824. Its totient is φ = 56476500.

The previous prime is 56853133. The next prime is 56853169. The reversal of 56853161 is 16135865.

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 56853161 - 214 = 56836777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56853169) 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, 188105 + ... + 188406.

It is an arithmetic number, because the mean of its divisors is an integer number (14307456).

Almost surely, 256853161 is an apocalyptic number.

It is an amenable number.

56853161 is a deficient number, since it is larger than the sum of its proper divisors (376663).

56853161 is a wasteful number, since it uses less digits than its factorization.

56853161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376662.

The product of its digits is 21600, while the sum is 35.

The square root of 56853161 is about 7540.1035138783. The cubic root of 56853161 is about 384.5193552226.

The spelling of 56853161 in words is "fifty-six million, eight hundred fifty-three thousand, one hundred sixty-one".

Divisors: 1 151 376511 56853161