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57887 = 107541
BaseRepresentation
bin1110001000011111
32221101222
432020133
53323022
61123555
7330524
oct161037
987358
1057887
113a545
12295bb
132046b
141714b
1512242
hexe21f

57887 has 4 divisors (see below), whose sum is σ = 58536. Its totient is φ = 57240.

The previous prime is 57881. The next prime is 57899. The reversal of 57887 is 78875.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 57887 - 212 = 53791 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 57887.

It is not an unprimeable number, because it can be changed into a prime (57881) 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, 164 + ... + 377.

It is an arithmetic number, because the mean of its divisors is an integer number (14634).

257887 is an apocalyptic number.

57887 is a deficient number, since it is larger than the sum of its proper divisors (649).

57887 is a wasteful number, since it uses less digits than its factorization.

57887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its digits is 15680, while the sum is 35.

The square root of 57887 is about 240.5971737157. The cubic root of 57887 is about 38.6836116113.

The spelling of 57887 in words is "fifty-seven thousand, eight hundred eighty-seven".

Divisors: 1 107 541 57887