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113128 = 2379179
BaseRepresentation
bin11011100111101000
312202011221
4123213220
512110003
62231424
7650551
oct334750
9182157
10113128
1177aa4
1255574
133c652
142d328
15237bd
hex1b9e8

113128 has 16 divisors (see below), whose sum is σ = 216000. Its totient is φ = 55536.

The previous prime is 113123. The next prime is 113131. The reversal of 113128 is 821311.

It is an Ulam number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113123) 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, 543 + ... + 721.

It is an arithmetic number, because the mean of its divisors is an integer number (13500).

2113128 is an apocalyptic number.

It is an amenable number.

113128 is a deficient number, since it is larger than the sum of its proper divisors (102872).

113128 is a wasteful number, since it uses less digits than its factorization.

113128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 260 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 113128 is about 336.3450609122. The cubic root of 113128 is about 48.3641288749.

Adding to 113128 its reverse (821311), we get a palindrome (934439).

The spelling of 113128 in words is "one hundred thirteen thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 79 158 179 316 358 632 716 1432 14141 28282 56564 113128