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18268854 = 2323132383
BaseRepresentation
bin100010110110…
…0001010110110
31021101011011020
41011230022312
514134100404
61451322010
7311165652
oct105541266
937334136
1018268854
11a34872a
126150306
133a28496
1425d7a62
15190ced9
hex116c2b6

18268854 has 16 divisors (see below), whose sum is σ = 38126592. Its totient is φ = 5824808.

The previous prime is 18268849. The next prime is 18268891. The reversal of 18268854 is 45886281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66054 + ... + 66329.

It is an arithmetic number, because the mean of its divisors is an integer number (2382912).

Almost surely, 218268854 is an apocalyptic number.

18268854 is an abundant number, since it is smaller than the sum of its proper divisors (19857738).

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

18268854 is a wasteful number, since it uses less digits than its factorization.

18268854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132411.

The product of its digits is 122880, while the sum is 42.

The square root of 18268854 is about 4274.2079968106. The cubic root of 18268854 is about 263.3725053443.

The spelling of 18268854 in words is "eighteen million, two hundred sixty-eight thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 23 46 69 138 132383 264766 397149 794298 3044809 6089618 9134427 18268854