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87017 = 731401
BaseRepresentation
bin10101001111101001
311102100212
4111033221
510241032
61510505
7511460
oct251751
9142325
1087017
115a417
1242435
13307b8
14239d7
151abb2
hex153e9

87017 has 8 divisors (see below), whose sum is σ = 102912. Its totient is φ = 72000.

The previous prime is 87013. The next prime is 87037. The reversal of 87017 is 71078.

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 87017 - 22 = 87013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86983 and 87001.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87017.

It is not an unprimeable number, because it can be changed into a prime (87011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17 + ... + 417.

It is an arithmetic number, because the mean of its divisors is an integer number (12864).

287017 is an apocalyptic number.

It is an amenable number.

87017 is a deficient number, since it is larger than the sum of its proper divisors (15895).

87017 is a wasteful number, since it uses less digits than its factorization.

87017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 87017 is about 294.9864403663. The cubic root of 87017 is about 44.3133621519.

The spelling of 87017 in words is "eighty-seven thousand, seventeen".

Divisors: 1 7 31 217 401 2807 12431 87017