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18131096 = 234748221
BaseRepresentation
bin100010100101…
…0100010011000
31021010011012002
41011022202120
514120143341
61444340132
7310053224
oct105124230
937104162
1018131096
11a264185
1260a4648
1339aa879
14259d784
1518d229b
hex114a898

18131096 has 16 divisors (see below), whose sum is σ = 34719840. Its totient is φ = 8872480.

The previous prime is 18131081. The next prime is 18131117. The reversal of 18131096 is 69013181.

It is a happy number.

It is a super-2 number, since 2×181310962 = 657473284322432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23735 + ... + 24486.

It is an arithmetic number, because the mean of its divisors is an integer number (2169990).

Almost surely, 218131096 is an apocalyptic number.

It is an amenable number.

18131096 is a deficient number, since it is larger than the sum of its proper divisors (16588744).

18131096 is a wasteful number, since it uses less digits than its factorization.

18131096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48274 (or 48270 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 18131096 is about 4258.0624701852. The cubic root of 18131096 is about 262.7088394011.

The spelling of 18131096 in words is "eighteen million, one hundred thirty-one thousand, ninety-six".

Divisors: 1 2 4 8 47 94 188 376 48221 96442 192884 385768 2266387 4532774 9065548 18131096