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18324903486 = 2323111321571
BaseRepresentation
bin10001000100001111…
…111101011000111110
31202022002112112211010
4101010033331120332
5300012133402421
612230210140050
71216052052411
oct210417753076
952262475733
1018324903486
117853a2623a
123674b81626
13196063a676
14c5ba43b78
15723b86076
hex4443fd63e

18324903486 has 16 divisors (see below), whose sum is σ = 36665693568. Its totient is φ = 6105653400.

The previous prime is 18324903481. The next prime is 18324903559. The reversal of 18324903486 is 68430942381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18324903481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646920 + ... + 674651.

It is an arithmetic number, because the mean of its divisors is an integer number (2291605848).

Almost surely, 218324903486 is an apocalyptic number.

18324903486 is an abundant number, since it is smaller than the sum of its proper divisors (18340790082).

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

18324903486 is a wasteful number, since it uses less digits than its factorization.

18324903486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323887.

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 18324903486 in words is "eighteen billion, three hundred twenty-four million, nine hundred three thousand, four hundred eighty-six".

Divisors: 1 2 3 6 2311 4622 6933 13866 1321571 2643142 3964713 7929426 3054150581 6108301162 9162451743 18324903486