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384941820 = 22356415697
BaseRepresentation
bin10110111100011…
…011111011111100
3222211100001220110
4112330123323330
51242021114240
6102110350020
712352644234
oct2674337374
9884301813
10384941820
1118832053a
12a8abb310
136199b633
14391a4cc4
1523bdbc80
hex16f1befc

384941820 has 24 divisors (see below), whose sum is σ = 1077837264. Its totient is φ = 102651136.

The previous prime is 384941813. The next prime is 384941839. The reversal of 384941820 is 28149483.

384941820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3207789 + ... + 3207908.

It is an arithmetic number, because the mean of its divisors is an integer number (44909886).

Almost surely, 2384941820 is an apocalyptic number.

384941820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

384941820 is an abundant number, since it is smaller than the sum of its proper divisors (692895444).

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

384941820 is a wasteful number, since it uses less digits than its factorization.

384941820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415709 (or 6415707 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 384941820 is about 19619.9342506544. The cubic root of 384941820 is about 727.4419882652.

The spelling of 384941820 in words is "three hundred eighty-four million, nine hundred forty-one thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 6415697 12831394 19247091 25662788 32078485 38494182 64156970 76988364 96235455 128313940 192470910 384941820