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52056131 = 291795039
BaseRepresentation
bin1100011010010…
…1000001000011
310121221201120212
43012211001003
5101311244011
65055424335
71201320101
oct306450103
9117851525
1052056131
11274255a6
12155250ab
13aa2825a
146cb0c71
15488408b
hex31a5043

52056131 has 4 divisors (see below), whose sum is σ = 53851200. Its totient is φ = 50261064.

The previous prime is 52056127. The next prime is 52056133. The reversal of 52056131 is 13165025.

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

It is a cyclic number.

It is not a de Polignac number, because 52056131 - 22 = 52056127 is a prime.

It is a super-2 number, since 2×520561312 = 5419681549378322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52056097 and 52056106.

It is not an unprimeable number, because it can be changed into a prime (52056133) 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, 897491 + ... + 897548.

It is an arithmetic number, because the mean of its divisors is an integer number (13462800).

Almost surely, 252056131 is an apocalyptic number.

52056131 is a deficient number, since it is larger than the sum of its proper divisors (1795069).

52056131 is a wasteful number, since it uses less digits than its factorization.

52056131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795068.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 52056131 is about 7214.9934857905. The cubic root of 52056131 is about 373.3853684025.

The spelling of 52056131 in words is "fifty-two million, fifty-six thousand, one hundred thirty-one".

Divisors: 1 29 1795039 52056131