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86875 = 54139
BaseRepresentation
bin10101001101011011
311102011121
4111031123
510240000
61510111
7511165
oct251533
9142147
1086875
115a2a8
1242337
1330709
1423935
151ab1a
hex1535b

86875 has 10 divisors (see below), whose sum is σ = 109340. Its totient is φ = 69000.

The previous prime is 86869. The next prime is 86923. The reversal of 86875 is 57868.

It is not a de Polignac number, because 86875 - 25 = 86843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86875.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 556 + ... + 694.

It is an arithmetic number, because the mean of its divisors is an integer number (10934).

286875 is an apocalyptic number.

86875 is a deficient number, since it is larger than the sum of its proper divisors (22465).

86875 is an equidigital number, since it uses as much as digits as its factorization.

86875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 144 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 86875 is about 294.7456530638. The cubic root of 86875 is about 44.2892445528.

It can be divided in two parts, 86 and 875, that added together give a square (961 = 312).

The spelling of 86875 in words is "eighty-six thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 139 625 695 3475 17375 86875