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18330852 = 2236612311
BaseRepresentation
bin100010111101…
…1010011100100
31021111022012110
41011323103210
514143041402
61452521020
7311544501
oct105732344
937438173
1018330852
11a390271
126180170
133a4a777
1426124a8
15192156c
hex117b4e4

18330852 has 24 divisors (see below), whose sum is σ = 42855232. Its totient is φ = 6098400.

The previous prime is 18330803. The next prime is 18330859. The reversal of 18330852 is 25803381.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18330859) 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, 6777 + ... + 9087.

Almost surely, 218330852 is an apocalyptic number.

18330852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18330852 is an abundant number, since it is smaller than the sum of its proper divisors (24524380).

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

18330852 is a wasteful number, since it uses less digits than its factorization.

18330852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979 (or 2977 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 18330852 is about 4281.4544257764. The cubic root of 18330852 is about 263.6700998589.

The spelling of 18330852 in words is "eighteen million, three hundred thirty thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 661 1322 1983 2311 2644 3966 4622 6933 7932 9244 13866 27732 1527571 3055142 4582713 6110284 9165426 18330852