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18093051 = 378273
BaseRepresentation
bin100010100000…
…1001111111011
31021001020000000
41011001033323
514112434201
61443444043
7306534264
oct105011773
937036000
1018093051
11a238639
126086623
133996462
14258d96b
1518c5d86
hex11413fb

18093051 has 16 divisors (see below), whose sum is σ = 27138720. Its totient is φ = 12060576.

The previous prime is 18093041. The next prime is 18093079. The reversal of 18093051 is 15039081.

It is not a de Polignac number, because 18093051 - 27 = 18092923 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (18093011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950 + ... + 6323.

It is an arithmetic number, because the mean of its divisors is an integer number (1696170).

Almost surely, 218093051 is an apocalyptic number.

18093051 is a deficient number, since it is larger than the sum of its proper divisors (9045669).

18093051 is an frugal number, since it uses more digits than its factorization.

18093051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8294 (or 8276 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 18093051 is about 4253.5927167513. The cubic root of 18093051 is about 262.5249608917.

The spelling of 18093051 in words is "eighteen million, ninety-three thousand, fifty-one".

Divisors: 1 3 9 27 81 243 729 2187 8273 24819 74457 223371 670113 2010339 6031017 18093051