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23831828 = 2213942863
BaseRepresentation
bin101101011101…
…0010100010100
31122211210010022
41122322110110
522100104303
62210444312
7406365356
oct132722424
948753108
1023831828
11124a8229
127b93698
134c25597
1432450d6
15215b438
hex16ba514

23831828 has 12 divisors (see below), whose sum is σ = 42006720. Its totient is φ = 11829912.

The previous prime is 23831809. The next prime is 23831837. The reversal of 23831828 is 82813832.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20876 + ... + 21987.

It is an arithmetic number, because the mean of its divisors is an integer number (3500560).

Almost surely, 223831828 is an apocalyptic number.

It is an amenable number.

23831828 is a deficient number, since it is larger than the sum of its proper divisors (18174892).

23831828 is a wasteful number, since it uses less digits than its factorization.

23831828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43006 (or 43004 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 23831828 is about 4881.7853291598. The cubic root of 23831828 is about 287.7745953655.

The spelling of 23831828 in words is "twenty-three million, eight hundred thirty-one thousand, eight hundred twenty-eight".

Divisors: 1 2 4 139 278 556 42863 85726 171452 5957957 11915914 23831828