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1838105118 = 232102116951
BaseRepresentation
bin110110110001111…
…0100001000011110
311202002201102012100
41231203310020132
512231023330433
6502220545530
763356431023
oct15543641036
94662642170
101838105118
11863620643
124336b22a6
13233a72285
1413619554a
15ab583b13
hex6d8f421e

1838105118 has 12 divisors (see below), whose sum is σ = 3982561128. Its totient is φ = 612701700.

The previous prime is 1838105111. The next prime is 1838105141. The reversal of 1838105118 is 8115018381.

It is a happy number.

1838105118 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838105111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51058458 + ... + 51058493.

It is an arithmetic number, because the mean of its divisors is an integer number (331880094).

Almost surely, 21838105118 is an apocalyptic number.

1838105118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1838105118 is an abundant number, since it is smaller than the sum of its proper divisors (2144456010).

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

1838105118 is a wasteful number, since it uses less digits than its factorization.

1838105118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102116959 (or 102116956 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 36.

The square root of 1838105118 is about 42873.1281573901. The cubic root of 1838105118 is about 1224.9643455956.

The spelling of 1838105118 in words is "one billion, eight hundred thirty-eight million, one hundred five thousand, one hundred eighteen".

Divisors: 1 2 3 6 9 18 102116951 204233902 306350853 612701706 919052559 1838105118