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57879385 = 5232691871
BaseRepresentation
bin1101110011001…
…0101101011001
311000220120120221
43130302231121
5104304120020
65424320041
71301652364
oct334625531
9130816527
1057879385
112a742703
1217473021
13bcb6975
1479890db
1551346aa
hex3732b59

57879385 has 16 divisors (see below), whose sum is σ = 72783360. Its totient is φ = 44102080.

The previous prime is 57879383. The next prime is 57879401. The reversal of 57879385 is 58397875.

It is not a de Polignac number, because 57879385 - 21 = 57879383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57879383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30000 + ... + 31870.

It is an arithmetic number, because the mean of its divisors is an integer number (4548960).

Almost surely, 257879385 is an apocalyptic number.

It is an amenable number.

57879385 is a deficient number, since it is larger than the sum of its proper divisors (14903975).

57879385 is a wasteful number, since it uses less digits than its factorization.

57879385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168.

The product of its digits is 2116800, while the sum is 52.

The square root of 57879385 is about 7607.8502219747. The cubic root of 57879385 is about 386.8191526830.

The spelling of 57879385 in words is "fifty-seven million, eight hundred seventy-nine thousand, three hundred eighty-five".

Divisors: 1 5 23 115 269 1345 1871 6187 9355 30935 43033 215165 503299 2516495 11575877 57879385