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18198579014 = 2711118172591
BaseRepresentation
bin10000111100101110…
…000100011101000110
31201222021211121012222
4100330232010131012
5244232314012024
612205454412342
71212656240450
oct207456043506
951867747188
1018198579014
117799694850
12363a8010b2
13194040ab65
14c48d5d2d0
15717a3185e
hex43cb84746

18198579014 has 16 divisors (see below), whose sum is σ = 34033706496. Its totient is φ = 7090355400.

The previous prime is 18198579011. The next prime is 18198579029. The reversal of 18198579014 is 41097589181.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18198579011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59086142 + ... + 59086449.

It is an arithmetic number, because the mean of its divisors is an integer number (2127106656).

Almost surely, 218198579014 is an apocalyptic number.

18198579014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18198579014 is a deficient number, since it is larger than the sum of its proper divisors (15835127482).

18198579014 is a wasteful number, since it uses less digits than its factorization.

18198579014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118172611.

The product of its (nonzero) digits is 725760, while the sum is 53.

The spelling of 18198579014 in words is "eighteen billion, one hundred ninety-eight million, five hundred seventy-nine thousand, fourteen".

Divisors: 1 2 7 11 14 22 77 154 118172591 236345182 827208137 1299898501 1654416274 2599797002 9099289507 18198579014