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18368327652 = 2235632718817
BaseRepresentation
bin10001000110110101…
…100110111111100100
31202102010020201120120
4101012311212333210
5300104242441102
612234401001540
71220120131443
oct210665467744
952363221516
1018368327652
117876495484
1236876232b0
13196963293c
14c63708d5a
157278b26bc
hex446d66fe4

18368327652 has 24 divisors (see below), whose sum is σ = 42935573856. Its totient is φ = 6111898368.

The previous prime is 18368327651. The next prime is 18368327707. The reversal of 18368327652 is 25672386381.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18368327595 and 18368327604.

It is not an unprimeable number, because it can be changed into a prime (18368327651) 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, 1352653 + ... + 1366164.

It is an arithmetic number, because the mean of its divisors is an integer number (1788982244).

Almost surely, 218368327652 is an apocalyptic number.

18368327652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18368327652 is an abundant number, since it is smaller than the sum of its proper divisors (24567246204).

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

18368327652 is a wasteful number, since it uses less digits than its factorization.

18368327652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719387 (or 2719385 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 18368327652 in words is "eighteen billion, three hundred sixty-eight million, three hundred twenty-seven thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 563 1126 1689 2252 3378 6756 2718817 5437634 8156451 10875268 16312902 32625804 1530693971 3061387942 4592081913 6122775884 9184163826 18368327652