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18283164732 = 223271959611061
BaseRepresentation
bin10001000001110000…
…101111010000111100
31202012012000000000100
4101001300233100330
5244420442232412
612222115401100
71215034223160
oct210160572074
952165000010
1018283164732
1178324082a8
123662bb3190
131954ab5591
14c5629aca0
1572018dedc
hex441c2f43c

18283164732 has 288 divisors, whose sum is σ = 57521318400. Its totient is φ = 4780684800.

The previous prime is 18283164707. The next prime is 18283164799. The reversal of 18283164732 is 23746138281.

It is a super-2 number, since 2×182831647322 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17231482 + ... + 17232542.

It is an arithmetic number, because the mean of its divisors is an integer number (199726800).

Almost surely, 218283164732 is an apocalyptic number.

18283164732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18283164732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28760659200).

18283164732 is an abundant number, since it is smaller than the sum of its proper divisors (39238153668).

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

18283164732 is a wasteful number, since it uses less digits than its factorization.

18283164732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217 (or 1212 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 18283164732 in words is "eighteen billion, two hundred eighty-three million, one hundred sixty-four thousand, seven hundred thirty-two".