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57942587 = 4710131217
BaseRepresentation
bin1101110100001…
…0001000111011
311001000210021202
43131002020323
5104313130322
65425524415
71302334553
oct335021073
9131023252
1057942587
112a78613a
12174a370b
13c009671
1479a4163
155148292
hex374223b

57942587 has 8 divisors (see below), whose sum is σ = 59282496. Its totient is φ = 56607232.

The previous prime is 57942581. The next prime is 57942601. The reversal of 57942587 is 78524975.

It is a happy number.

57942587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57942587 - 26 = 57942523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57942581) 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 7 ways as a sum of consecutive naturals, for example, 47003 + ... + 48219.

It is an arithmetic number, because the mean of its divisors is an integer number (7410312).

Almost surely, 257942587 is an apocalyptic number.

57942587 is a deficient number, since it is larger than the sum of its proper divisors (1339909).

57942587 is a wasteful number, since it uses less digits than its factorization.

57942587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277.

The product of its digits is 705600, while the sum is 47.

The square root of 57942587 is about 7612.0028244871. The cubic root of 57942587 is about 386.9598985394.

The spelling of 57942587 in words is "fifty-seven million, nine hundred forty-two thousand, five hundred eighty-seven".

Divisors: 1 47 1013 1217 47611 57199 1232821 57942587