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23236 = 2237157
BaseRepresentation
bin101101011000100
31011212121
411223010
51220421
6255324
7124513
oct55304
934777
1023236
1116504
1211544
13a765
14867a
156d41
hex5ac4

23236 has 12 divisors (see below), whose sum is σ = 42028. Its totient is φ = 11232.

The previous prime is 23227. The next prime is 23251. The reversal of 23236 is 63232.

It can be written as a sum of positive squares in 2 ways, for example, as 14400 + 8836 = 120^2 + 94^2 .

It is a d-powerful number, because it can be written as 27 + 34 + 211 + 39 + 64 .

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 9.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70 + ... + 226.

223236 is an apocalyptic number.

It is an amenable number.

23236 is a deficient number, since it is larger than the sum of its proper divisors (18792).

23236 is a wasteful number, since it uses less digits than its factorization.

23236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 196 counting only the distinct ones).

The product of its digits is 216, while the sum is 16.

The square root of 23236 is about 152.4335920983. The cubic root of 23236 is about 28.5356074895.

Subtracting from 23236 its sum of digits (16), we obtain a triangular number (23220 = T215).

Adding to 23236 its reverse (63232), we get a palindrome (86468).

The spelling of 23236 in words is "twenty-three thousand, two hundred thirty-six".

Divisors: 1 2 4 37 74 148 157 314 628 5809 11618 23236