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113688320 = 28588819
BaseRepresentation
bin1101100011010…
…11111100000000
321220220222001112
412301223330000
5213101011240
615140422452
72550222554
oct661537400
9256828045
10113688320
11591a0799
12320a7a28
131a7270c5
1411155864
159eaa665
hex6c6bf00

113688320 has 36 divisors (see below), whose sum is σ = 272322120. Its totient is φ = 45474816.

The previous prime is 113688317. The next prime is 113688329. The reversal of 113688320 is 23886311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113688329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43130 + ... + 45689.

Almost surely, 2113688320 is an apocalyptic number.

113688320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113688320 is an abundant number, since it is smaller than the sum of its proper divisors (158633800).

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

113688320 is an frugal number, since it uses more digits than its factorization.

113688320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88840 (or 88826 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 113688320 is about 10662.4725087571. The cubic root of 113688320 is about 484.4384615845.

The spelling of 113688320 in words is "one hundred thirteen million, six hundred eighty-eight thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 88819 177638 355276 444095 710552 888190 1421104 1776380 2842208 3552760 5684416 7105520 11368832 14211040 22737664 28422080 56844160 113688320