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87259 = 711229
BaseRepresentation
bin10101010011011011
311102200211
4111103123
510243014
61511551
7512254
oct252333
9142624
1087259
115a617
12425b7
1330943
1423b2b
151acc4
hex154db

87259 has 4 divisors (see below), whose sum is σ = 88560. Its totient is φ = 85960.

The previous prime is 87257. The next prime is 87277. The reversal of 87259 is 95278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95278 = 247639.

It is a cyclic number.

It is not a de Polignac number, because 87259 - 21 = 87257 is a prime.

It is a super-2 number, since 2×872592 = 15228266162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87259.

It is not an unprimeable number, because it can be changed into a prime (87251) 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, 544 + ... + 685.

It is an arithmetic number, because the mean of its divisors is an integer number (22140).

287259 is an apocalyptic number.

87259 is a deficient number, since it is larger than the sum of its proper divisors (1301).

87259 is a wasteful number, since it uses less digits than its factorization.

87259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300.

The product of its digits is 5040, while the sum is 31.

The square root of 87259 is about 295.3963439178. The cubic root of 87259 is about 44.3544035873.

The spelling of 87259 in words is "eighty-seven thousand, two hundred fifty-nine".

Divisors: 1 71 1229 87259