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18324590892 = 2235869260189
BaseRepresentation
bin10001000100001110…
…110001000100101100
31202022001221200000120
4101010032301010230
5300012043402032
612230155324540
71216046311146
oct210416610454
952261850016
1018324590892
1178538323a3
123674a50750
13196055b2ba
14c5b9a1c96
15723b2362c
hex4443b112c

18324590892 has 24 divisors (see below), whose sum is σ = 42764828400. Its totient is φ = 6107132736.

The previous prime is 18324590777. The next prime is 18324590897. The reversal of 18324590892 is 29809542381.

It is not an unprimeable number, because it can be changed into a prime (18324590897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59667 + ... + 200522.

It is an arithmetic number, because the mean of its divisors is an integer number (1781867850).

Almost surely, 218324590892 is an apocalyptic number.

18324590892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18324590892 is an abundant number, since it is smaller than the sum of its proper divisors (24440237508).

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

18324590892 is a wasteful number, since it uses less digits than its factorization.

18324590892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266065 (or 266063 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 18324590892 in words is "eighteen billion, three hundred twenty-four million, five hundred ninety thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 5869 11738 17607 23476 35214 70428 260189 520378 780567 1040756 1561134 3122268 1527049241 3054098482 4581147723 6108196964 9162295446 18324590892