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23282920 = 2351633571
BaseRepresentation
bin101100011010…
…0010011101000
31121210220011101
41120310103220
521430023140
62151011144
7401621143
oct130642350
947726141
1023282920
1112162891
127969ab4
134a9279b
14314105a
15209d99a
hex16344e8

23282920 has 32 divisors (see below), whose sum is σ = 52722720. Its totient is φ = 9253440.

The previous prime is 23282893. The next prime is 23282921. The reversal of 23282920 is 2928232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23282921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4735 + ... + 8305.

It is an arithmetic number, because the mean of its divisors is an integer number (1647585).

Almost surely, 223282920 is an apocalyptic number.

23282920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23282920 is an abundant number, since it is smaller than the sum of its proper divisors (29439800).

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

23282920 is a wasteful number, since it uses less digits than its factorization.

23282920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745 (or 3741 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 23282920 is about 4825.2378179733. The cubic root of 23282920 is about 285.5480170699.

The spelling of 23282920 in words is "twenty-three million, two hundred eighty-two thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 163 326 652 815 1304 1630 3260 3571 6520 7142 14284 17855 28568 35710 71420 142840 582073 1164146 2328292 2910365 4656584 5820730 11641460 23282920