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568406990 = 2556840699
BaseRepresentation
bin100001111000010…
…011001111001110
31110121120001210202
4201320103033032
52131003010430
6132222533502
720041244144
oct4170231716
91417501722
10568406990
1127193a648
1213a437292
13909b67c8
14556c1594
1534d7bd45
hex21e133ce

568406990 has 8 divisors (see below), whose sum is σ = 1023132600. Its totient is φ = 227362792.

The previous prime is 568406963. The next prime is 568407011. The reversal of 568406990 is 99604865.

568406990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent 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, 28420340 + ... + 28420359.

It is an arithmetic number, because the mean of its divisors is an integer number (127891575).

Almost surely, 2568406990 is an apocalyptic number.

568406990 is a deficient number, since it is larger than the sum of its proper divisors (454725610).

568406990 is a wasteful number, since it uses less digits than its factorization.

568406990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56840706.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 568406990 is about 23841.2875071796. The cubic root of 568406990 is about 828.3613044690.

The spelling of 568406990 in words is "five hundred sixty-eight million, four hundred six thousand, nine hundred ninety".

Divisors: 1 2 5 10 56840699 113681398 284203495 568406990