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115638 = 2319273
BaseRepresentation
bin11100001110110110
312212121220
4130032312
512200023
62251210
7661065
oct341666
9185556
10115638
1179976
1256b06
1340833
14301dc
15243e3
hex1c3b6

115638 has 8 divisors (see below), whose sum is σ = 231288. Its totient is φ = 38544.

The previous prime is 115637. The next prime is 115657. The reversal of 115638 is 836511.

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

115638 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115631) 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, 9631 + ... + 9642.

It is an arithmetic number, because the mean of its divisors is an integer number (28911).

2115638 is an apocalyptic number.

115638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115638 is a wasteful number, since it uses less digits than its factorization.

115638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19278.

The product of its digits is 720, while the sum is 24.

The square root of 115638 is about 340.0558777613. The cubic root of 115638 is about 48.7192047454.

The spelling of 115638 in words is "one hundred fifteen thousand, six hundred thirty-eight".

Divisors: 1 2 3 6 19273 38546 57819 115638