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568264864 = 25231734463
BaseRepresentation
bin100001110111110…
…000100010100000
31110121021211211211
4201313300202200
52130433433424
6132215515504
720040112606
oct4167604240
91417254754
10568264864
11271852892
1213a388b94
1390966bcb
1455685876
1534d4eb94
hex21df08a0

568264864 has 48 divisors (see below), whose sum is σ = 1174424832. Its totient is φ = 270147328.

The previous prime is 568264859. The next prime is 568264871. The reversal of 568264864 is 468462865.

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, 125097 + ... + 129559.

It is an arithmetic number, because the mean of its divisors is an integer number (24467184).

Almost surely, 2568264864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 568264864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (587212416).

568264864 is an abundant number, since it is smaller than the sum of its proper divisors (606159968).

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

568264864 is a wasteful number, since it uses less digits than its factorization.

568264864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669 (or 4661 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 49.

The square root of 568264864 is about 23838.3066512703. The cubic root of 568264864 is about 828.2922568236.

The spelling of 568264864 in words is "five hundred sixty-eight million, two hundred sixty-four thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 23 32 46 92 173 184 346 368 692 736 1384 2768 3979 4463 5536 7958 8926 15916 17852 31832 35704 63664 71408 102649 127328 142816 205298 410596 772099 821192 1544198 1642384 3088396 3284768 6176792 12353584 17758277 24707168 35516554 71033108 142066216 284132432 568264864