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18808689034 = 2671009313907
BaseRepresentation
bin10001100001000101…
…011101000110001010
31210112210212101211101
4101201011131012022
5302010011022114
612350211252014
71234045135042
oct214105350612
953483771741
1018808689034
117a82018503
12378abaa00a
131a099363c5
14ca5db8722
15751399d74
hex46115d18a

18808689034 has 16 divisors (see below), whose sum is σ = 28639019808. Its totient is φ = 9262397232.

The previous prime is 18808688999. The next prime is 18808689043. The reversal of 18808689034 is 43098680881.

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, 1345509 + ... + 1359415.

It is an arithmetic number, because the mean of its divisors is an integer number (1789938738).

Almost surely, 218808689034 is an apocalyptic number.

18808689034 is a deficient number, since it is larger than the sum of its proper divisors (9830330774).

18808689034 is a wasteful number, since it uses less digits than its factorization.

18808689034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24069.

The product of its (nonzero) digits is 2654208, while the sum is 55.

The spelling of 18808689034 in words is "eighteen billion, eight hundred eight million, six hundred eighty-nine thousand, thirty-four".

Divisors: 1 2 67 134 10093 13907 20186 27814 676231 931769 1352462 1863538 140363351 280726702 9404344517 18808689034