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568089905 = 5877129553
BaseRepresentation
bin100001110111000…
…101110100110001
31110120221221211212
4201313011310301
52130412334110
6132212045505
720035453535
oct4167056461
91416857755
10568089905
11271743399
1213a303895
1390905396
145563bbc5
1534d17e05
hex21dc5d31

568089905 has 8 divisors (see below), whose sum is σ = 682490472. Its totient is φ = 453950208.

The previous prime is 568089887. The next prime is 568089913. The reversal of 568089905 is 509980865.

It is a happy number.

568089905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9193024 + 558896881 = 3032^2 + 23641^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 568089905 - 214 = 568073521 is a prime.

It is a super-2 number, since 2×5680899052 = 645452280325818050, which contains 22 as substring.

It is a Duffinian 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, 60392 + ... + 69161.

It is an arithmetic number, because the mean of its divisors is an integer number (85311309).

Almost surely, 2568089905 is an apocalyptic number.

It is an amenable number.

568089905 is a deficient number, since it is larger than the sum of its proper divisors (114400567).

568089905 is a wasteful number, since it uses less digits than its factorization.

568089905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130435.

The product of its (nonzero) digits is 777600, while the sum is 50.

The square root of 568089905 is about 23834.6366659951. The cubic root of 568089905 is about 828.2072424409.

The spelling of 568089905 in words is "five hundred sixty-eight million, eighty-nine thousand, nine hundred five".

Divisors: 1 5 877 4385 129553 647765 113617981 568089905