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23120832 = 263717203
BaseRepresentation
bin101100000110…
…0101111000000
31121111122211010
41120030233000
521404331312
62143320520
7400344450
oct130145700
947448733
1023120832
1112062029
1278b0140
134a36a87
1430dbd60
15206a93c
hex160cbc0

23120832 has 56 divisors (see below), whose sum is σ = 69917056. Its totient is φ = 6605568.

The previous prime is 23120809. The next prime is 23120837. The reversal of 23120832 is 23802132.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23120799 and 23120808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7258 + ... + 9945.

Almost surely, 223120832 is an apocalyptic number.

It is an amenable number.

23120832 is an abundant number, since it is smaller than the sum of its proper divisors (46796224).

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

23120832 is a wasteful number, since it uses less digits than its factorization.

23120832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17225 (or 17215 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 23120832 is about 4808.4126278846. The cubic root of 23120832 is about 284.8838430924.

Adding to 23120832 its reverse (23802132), we get a palindrome (46922964).

The spelling of 23120832 in words is "twenty-three million, one hundred twenty thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 17203 34406 51609 68812 103218 120421 137624 206436 240842 275248 361263 412872 481684 550496 722526 825744 963368 1100992 1445052 1651488 1926736 2890104 3302976 3853472 5780208 7706944 11560416 23120832