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23153829 = 317943117
BaseRepresentation
bin101100001010…
…0110010100101
31121120100002020
41120110302211
521411410304
62144133353
7400542606
oct130246245
947510066
1023153829
11120848a6
127907259
134a48aba
143109dad
1520755d9
hex1614ca5

23153829 has 8 divisors (see below), whose sum is σ = 31044960. Its totient is φ = 15349296.

The previous prime is 23153827. The next prime is 23153833. The reversal of 23153829 is 92835132.

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

It is not a de Polignac number, because 23153829 - 21 = 23153827 is a prime.

It is a super-2 number, since 2×231538292 = 1072199594722482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23153829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23153827) 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, 21022 + ... + 22095.

It is an arithmetic number, because the mean of its divisors is an integer number (3880620).

Almost surely, 223153829 is an apocalyptic number.

It is an amenable number.

23153829 is a deficient number, since it is larger than the sum of its proper divisors (7891131).

23153829 is a wasteful number, since it uses less digits than its factorization.

23153829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43299.

The product of its digits is 12960, while the sum is 33.

The square root of 23153829 is about 4811.8425784724. The cubic root of 23153829 is about 285.0193030939.

The spelling of 23153829 in words is "twenty-three million, one hundred fifty-three thousand, eight hundred twenty-nine".

Divisors: 1 3 179 537 43117 129351 7717943 23153829