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18127492050 = 2352120849947
BaseRepresentation
bin10000111000011110…
…111001001111010010
31201210100002000020110
4100320132321033102
5244111114221200
612154435022150
71211134066023
oct207036711722
951710060213
1018127492050
117762551098
12361aa3a956
13192b77b675
14c3d736c4a
1571168db50
hex4387b93d2

18127492050 has 24 divisors (see below), whose sum is σ = 44956180656. Its totient is φ = 4833997840.

The previous prime is 18127492049. The next prime is 18127492063. The reversal of 18127492050 is 5029472181.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60424824 + ... + 60425123.

It is an arithmetic number, because the mean of its divisors is an integer number (1873174194).

Almost surely, 218127492050 is an apocalyptic number.

18127492050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18127492050 is an abundant number, since it is smaller than the sum of its proper divisors (26828688606).

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

18127492050 is a wasteful number, since it uses less digits than its factorization.

18127492050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120849962 (or 120849957 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 18127492050 in words is "eighteen billion, one hundred twenty-seven million, four hundred ninety-two thousand, fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 120849947 241699894 362549841 604249735 725099682 1208499470 1812749205 3021248675 3625498410 6042497350 9063746025 18127492050