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18116152 = 2317314297
BaseRepresentation
bin100010100011…
…0111000111000
31021002101200121
41011012320320
514114204102
61444143024
7306661525
oct105067070
937071617
1018116152
11a253a2a
126097a74
1339a3b22
14259814c
1518ccb37
hex1146e38

18116152 has 32 divisors (see below), whose sum is σ = 37134720. Its totient is φ = 8248320.

The previous prime is 18116149. The next prime is 18116167. The reversal of 18116152 is 25161181.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 2068 + ... + 6364.

It is an arithmetic number, because the mean of its divisors is an integer number (1160460).

Almost surely, 218116152 is an apocalyptic number.

It is an amenable number.

18116152 is an abundant number, since it is smaller than the sum of its proper divisors (19018568).

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

18116152 is a wasteful number, since it uses less digits than its factorization.

18116152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4351 (or 4347 counting only the distinct ones).

The product of its digits is 480, while the sum is 25.

The square root of 18116152 is about 4256.3073197315. The cubic root of 18116152 is about 262.6366429934.

The spelling of 18116152 in words is "eighteen million, one hundred sixteen thousand, one hundred fifty-two".

Divisors: 1 2 4 8 17 31 34 62 68 124 136 248 527 1054 2108 4216 4297 8594 17188 34376 73049 133207 146098 266414 292196 532828 584392 1065656 2264519 4529038 9058076 18116152