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57042017 = 244723311
BaseRepresentation
bin1101100110011…
…0010001100001
310222100000221022
43121212101201
5104100321032
65354335225
71261564154
oct331462141
9128300838
1057042017
112a22056a
121712a515
13ba82796
14780bc9b
15501b512
hex3666461

57042017 has 4 divisors (see below), whose sum is σ = 57067776. Its totient is φ = 57016260.

The previous prime is 57041993. The next prime is 57042019. The reversal of 57042017 is 71024075.

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 57042017 - 218 = 56779873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57042019) 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, 9209 + ... + 14102.

It is an arithmetic number, because the mean of its divisors is an integer number (14266944).

Almost surely, 257042017 is an apocalyptic number.

It is an amenable number.

57042017 is a deficient number, since it is larger than the sum of its proper divisors (25759).

57042017 is a wasteful number, since it uses less digits than its factorization.

57042017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25758.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 57042017 is about 7552.6165664622. The cubic root of 57042017 is about 384.9446527510.

The spelling of 57042017 in words is "fifty-seven million, forty-two thousand, seventeen".

Divisors: 1 2447 23311 57042017