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57084131 = 134391087
BaseRepresentation
bin1101100111000…
…0100011100011
310222102011201002
43121300203203
5104103143011
65355302215
71262131016
oct331604343
9128364632
1057084131
112a24a175
121714a96b
13ba989c0
14781d37d
155028c3b
hex36708e3

57084131 has 4 divisors (see below), whose sum is σ = 61475232. Its totient is φ = 52693032.

The previous prime is 57084121. The next prime is 57084133. The reversal of 57084131 is 13148075.

57084131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57084131 - 218 = 56821987 is a prime.

It is a super-2 number, since 2×570841312 = 6517196024050322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57084094 and 57084103.

It is not an unprimeable number, because it can be changed into a prime (57084133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2195531 + ... + 2195556.

It is an arithmetic number, because the mean of its divisors is an integer number (15368808).

Almost surely, 257084131 is an apocalyptic number.

57084131 is a deficient number, since it is larger than the sum of its proper divisors (4391101).

57084131 is a wasteful number, since it uses less digits than its factorization.

57084131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391100.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 57084131 is about 7555.4040924361. The cubic root of 57084131 is about 385.0393640529.

The spelling of 57084131 in words is "fifty-seven million, eighty-four thousand, one hundred thirty-one".

Divisors: 1 13 4391087 57084131