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23164900 = 22521121059
BaseRepresentation
bin101100001011…
…1011111100100
31121120220021021
41120113133210
521412234100
62144300524
7400620103
oct130273744
947526237
1023164900
1112092150
127911744
134a50b55
14311003a
152078a1a
hex16177e4

23164900 has 36 divisors (see below), whose sum is σ = 54840240. Its totient is φ = 8423200.

The previous prime is 23164891. The next prime is 23164901. The reversal of 23164900 is 946132.

It is a super-2 number, since 2×231649002 = 1073225184020000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (23164901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9430 + ... + 11629.

It is an arithmetic number, because the mean of its divisors is an integer number (1523340).

Almost surely, 223164900 is an apocalyptic number.

23164900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23164900 is an abundant number, since it is smaller than the sum of its proper divisors (31675340).

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

23164900 is a wasteful number, since it uses less digits than its factorization.

23164900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21084 (or 21077 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 23164900 is about 4812.9928319082. The cubic root of 23164900 is about 285.0647231684.

The spelling of 23164900 in words is "twenty-three million, one hundred sixty-four thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 21059 42118 84236 105295 210590 231649 421180 463298 526475 926596 1052950 1158245 2105900 2316490 4632980 5791225 11582450 23164900