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56161142 = 267715903
BaseRepresentation
bin1101011000111…
…1001101110110
310220200021121022
43112033031312
5103334124032
65323421142
71251235052
oct326171566
9126607538
1056161142
1129779774
12169847b2
13b83485b
14765cc62
154de5512
hex358f376

56161142 has 16 divisors (see below), whose sum is σ = 86717952. Its totient is φ = 27267240.

The previous prime is 56161123. The next prime is 56161199. The reversal of 56161142 is 24116165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6563 + ... + 12465.

It is an arithmetic number, because the mean of its divisors is an integer number (5419872).

Almost surely, 256161142 is an apocalyptic number.

56161142 is a deficient number, since it is larger than the sum of its proper divisors (30556810).

56161142 is a wasteful number, since it uses less digits than its factorization.

56161142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043.

The product of its digits is 1440, while the sum is 26.

The square root of 56161142 is about 7494.0737920039. The cubic root of 56161142 is about 382.9528536476.

The spelling of 56161142 in words is "fifty-six million, one hundred sixty-one thousand, one hundred forty-two".

Divisors: 1 2 67 71 134 142 4757 5903 9514 11806 395501 419113 791002 838226 28080571 56161142