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87265 = 531563
BaseRepresentation
bin10101010011100001
311102201001
4111103201
510243030
61512001
7512263
oct252341
9142631
1087265
115a622
1242601
1330949
1423b33
151acca
hex154e1

87265 has 8 divisors (see below), whose sum is σ = 108288. Its totient is φ = 67440.

The previous prime is 87257. The next prime is 87277. The reversal of 87265 is 56278.

87265 = T59 + T60 + ... + T89.

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

It is not a de Polignac number, because 87265 - 23 = 87257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127 + ... + 436.

It is an arithmetic number, because the mean of its divisors is an integer number (13536).

287265 is an apocalyptic number.

It is an amenable number.

87265 is a deficient number, since it is larger than the sum of its proper divisors (21023).

87265 is a wasteful number, since it uses less digits than its factorization.

87265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its digits is 3360, while the sum is 28.

The square root of 87265 is about 295.4064995900. The cubic root of 87265 is about 44.3554201790.

The spelling of 87265 in words is "eighty-seven thousand, two hundred sixty-five".

Divisors: 1 5 31 155 563 2815 17453 87265