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564797828 = 22720171351
BaseRepresentation
bin100001101010100…
…010000110000100
31110100202200222002
4201222202012010
52124042012303
6132013324432
716665462620
oct4152420604
91410680862
10564797828
1126a8a4a71
12139196718
1390021aca
1455022180
15348b7788
hex21aa2184

564797828 has 12 divisors (see below), whose sum is σ = 1129595712. Its totient is φ = 242056200.

The previous prime is 564797809. The next prime is 564797879. The reversal of 564797828 is 828797465.

564797828 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10085648 + ... + 10085703.

It is an arithmetic number, because the mean of its divisors is an integer number (94132976).

Almost surely, 2564797828 is an apocalyptic number.

It is an amenable number.

564797828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

564797828 is a wasteful number, since it uses less digits than its factorization.

564797828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20171362 (or 20171360 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 56.

The square root of 564797828 is about 23765.4755475248. The cubic root of 564797828 is about 826.6043237614.

The spelling of 564797828 in words is "five hundred sixty-four million, seven hundred ninety-seven thousand, eight hundred twenty-eight".

Divisors: 1 2 4 7 14 28 20171351 40342702 80685404 141199457 282398914 564797828