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18097075 = 521634441
BaseRepresentation
bin100010100001…
…0001110110011
31021001102112001
41011002032303
514113101300
61443514431
7306552103
oct105021663
937042461
1018097075
11a240667
126088a17
133998239
142591203
1518c716a
hex11423b3

18097075 has 12 divisors (see below), whose sum is σ = 22583128. Its totient is φ = 14385600.

The previous prime is 18097069. The next prime is 18097097. The reversal of 18097075 is 57079081.

It is not a de Polignac number, because 18097075 - 25 = 18097043 is a prime.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 1855 + ... + 6295.

Almost surely, 218097075 is an apocalyptic number.

18097075 is a deficient number, since it is larger than the sum of its proper divisors (4486053).

18097075 is a wasteful number, since it uses less digits than its factorization.

18097075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614 (or 4609 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 18097075 is about 4254.0657023605. The cubic root of 18097075 is about 262.5444218095.

The spelling of 18097075 in words is "eighteen million, ninety-seven thousand, seventy-five".

Divisors: 1 5 25 163 815 4075 4441 22205 111025 723883 3619415 18097075