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23238172 = 2233717239
BaseRepresentation
bin101100010100…
…1011000011100
31121201121210001
41120221120130
521422110142
62150024044
7401343526
oct130513034
947647701
1023238172
1112132201
127948024
134a782c9
14312ca16
1520905b7
hex162961c

23238172 has 12 divisors (see below), whose sum is σ = 40789840. Its totient is φ = 11583936.

The previous prime is 23238169. The next prime is 23238191. The reversal of 23238172 is 27183232.

It is a self number, because there is not a number n which added to its sum of digits gives 23238172.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7272 + ... + 9967.

Almost surely, 223238172 is an apocalyptic number.

It is an amenable number.

23238172 is a deficient number, since it is larger than the sum of its proper divisors (17551668).

23238172 is a wasteful number, since it uses less digits than its factorization.

23238172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17580 (or 17578 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 23238172 is about 4820.5987180017. The cubic root of 23238172 is about 285.3649658984.

The spelling of 23238172 in words is "twenty-three million, two hundred thirty-eight thousand, one hundred seventy-two".

Divisors: 1 2 4 337 674 1348 17239 34478 68956 5809543 11619086 23238172