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564845897 = 7117335661
BaseRepresentation
bin100001101010101…
…101110101001001
31110100212010220102
4201222231311021
52124100032042
6132014335145
716666053020
oct4152556511
91410763812
10564845897
1126a9280a0
121391ba4b5
139003a955
14550358b7
15348c6b32
hex21aadd49

564845897 has 8 divisors (see below), whose sum is σ = 704223552. Its totient is φ = 440139600.

The previous prime is 564845867. The next prime is 564845899. The reversal of 564845897 is 798548465.

It is a happy number.

564845897 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 cyclic number.

It is not a de Polignac number, because 564845897 - 28 = 564845641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564845899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3667754 + ... + 3667907.

It is an arithmetic number, because the mean of its divisors is an integer number (88027944).

Almost surely, 2564845897 is an apocalyptic number.

It is an amenable number.

564845897 is a deficient number, since it is larger than the sum of its proper divisors (139377655).

564845897 is a wasteful number, since it uses less digits than its factorization.

564845897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7335679.

The product of its digits is 9676800, while the sum is 56.

The square root of 564845897 is about 23766.4868459770. The cubic root of 564845897 is about 826.6277734007.

The spelling of 564845897 in words is "five hundred sixty-four million, eight hundred forty-five thousand, eight hundred ninety-seven".

Divisors: 1 7 11 77 7335661 51349627 80692271 564845897