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18093087 = 325383457
BaseRepresentation
bin100010100000…
…1010000011111
31021001020001100
41011001100133
514112434322
61443444143
7306534345
oct105012037
937036040
1018093087
11a238671
126086653
13399648c
14258d995
1518c5dac
hex114141f

18093087 has 24 divisors (see below), whose sum is σ = 27007344. Its totient is φ = 11666304.

The previous prime is 18093079. The next prime is 18093107. The reversal of 18093087 is 78039081.

It is not a de Polignac number, because 18093087 - 23 = 18093079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18093787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39363 + ... + 39819.

It is an arithmetic number, because the mean of its divisors is an integer number (1125306).

Almost surely, 218093087 is an apocalyptic number.

18093087 is a deficient number, since it is larger than the sum of its proper divisors (8914257).

18093087 is a wasteful number, since it uses less digits than its factorization.

18093087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 18093087 is about 4253.5969484661. The cubic root of 18093087 is about 262.5251350082.

The spelling of 18093087 in words is "eighteen million, ninety-three thousand, eighty-seven".

Divisors: 1 3 9 53 83 159 249 457 477 747 1371 4113 4399 13197 24221 37931 39591 72663 113793 217989 341379 2010343 6031029 18093087