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18114277122 = 232317232
BaseRepresentation
bin10000110111101100…
…011110111100000010
31201202102012121202200
4100313230132330002
5244044223331442
612153243454030
71210613546364
oct206754367402
951672177680
1018114277122
117756045567
123616527316
131928b02696
14c3ba96d34
1571042d34c
hex437b1ef02

18114277122 has 18 divisors (see below), whose sum is σ = 39248837667. Its totient is φ = 6037902036.

The previous prime is 18114277091. The next prime is 18114277123. The reversal of 18114277122 is 22177241181.

It can be written as a sum of positive squares in only one way, i.e., 9057138561 + 9057138561 = 95169^2 + 95169^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅BA, here for A=2, B=95169.

It is a super-2 number, since 2×181142771222 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18114277123) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 555153 + ... + 586875.

Almost surely, 218114277122 is an apocalyptic number.

18114277122 is an abundant number, since it is smaller than the sum of its proper divisors (21134560545).

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

18114277122 is an frugal number, since it uses more digits than its factorization.

18114277122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63454 (or 31728 counting only the distinct ones).

The product of its digits is 12544, while the sum is 36.

The spelling of 18114277122 in words is "eighteen billion, one hundred fourteen million, two hundred seventy-seven thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 31723 63446 95169 190338 285507 571014 1006348729 2012697458 3019046187 6038092374 9057138561 18114277122