Search a number
-
+
18100164 = 2236179313
BaseRepresentation
bin100010100001…
…0111111000100
31021001120202110
41011002333010
514113201124
61443541020
7306564105
oct105027704
937046673
1018100164
11a242a15
12608a770
133999774
1425923ac
1518c8029
hex1142fc4

18100164 has 48 divisors (see below), whose sum is σ = 43608320. Its totient is φ = 5840640.

The previous prime is 18100157. The next prime is 18100169. The reversal of 18100164 is 46100181.

It is a self number, because there is not a number n which added to its sum of digits gives 18100164.

It is not an unprimeable number, because it can be changed into a prime (18100169) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 57672 + ... + 57984.

Almost surely, 218100164 is an apocalyptic number.

It is an amenable number.

18100164 is an abundant number, since it is smaller than the sum of its proper divisors (25508156).

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

18100164 is a wasteful number, since it uses less digits than its factorization.

18100164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 18100164 is about 4254.4287513132. The cubic root of 18100164 is about 262.5593589118.

The spelling of 18100164 in words is "eighteen million, one hundred thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 61 79 122 158 183 237 244 313 316 366 474 626 732 939 948 1252 1878 3756 4819 9638 14457 19093 19276 24727 28914 38186 49454 57279 57828 74181 76372 98908 114558 148362 229116 296724 1508347 3016694 4525041 6033388 9050082 18100164