Search a number
-
+
23116185 = 34557077
BaseRepresentation
bin101100000101…
…1100110011001
31121111102110000
41120023212121
521404204220
62143243213
7400325061
oct130134631
947442400
1023116185
1112059594
1278a9509
134a34921
1430da3a1
152069390
hex160b999

23116185 has 20 divisors (see below), whose sum is σ = 41438628. Its totient is φ = 12328416.

The previous prime is 23116123. The next prime is 23116193. The reversal of 23116185 is 58161132.

It can be written as a sum of positive squares in 2 ways, for example, as 6859161 + 16257024 = 2619^2 + 4032^2 .

It is not a de Polignac number, because 23116185 - 213 = 23107993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28134 + ... + 28943.

Almost surely, 223116185 is an apocalyptic number.

It is an amenable number.

23116185 is a deficient number, since it is larger than the sum of its proper divisors (18322443).

23116185 is an equidigital number, since it uses as much as digits as its factorization.

23116185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57094 (or 57085 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 23116185 is about 4807.9293880006. The cubic root of 23116185 is about 284.8647557758.

The spelling of 23116185 in words is "twenty-three million, one hundred sixteen thousand, one hundred eighty-five".

Divisors: 1 3 5 9 15 27 45 81 135 405 57077 171231 285385 513693 856155 1541079 2568465 4623237 7705395 23116185