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564226931 is a prime number
BaseRepresentation
bin100001101000010…
…110101101110011
31110022200200211202
4201220112231303
52123420230211
6131553201415
716660564322
oct4150265563
91408620752
10564226931
1126a545054
12138b6026b
138cb81cb8
1454d140b9
153480353b
hex21a16b73

564226931 has 2 divisors, whose sum is σ = 564226932. Its totient is φ = 564226930.

The previous prime is 564226919. The next prime is 564226933. The reversal of 564226931 is 139622465.

564226931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 564226931 - 26 = 564226867 is a prime.

It is a super-2 number, since 2×5642269312 = 636704059331357522, which contains 22 as substring.

Together with 564226933, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (564226933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282113465 + 282113466.

It is an arithmetic number, because the mean of its divisors is an integer number (282113466).

Almost surely, 2564226931 is an apocalyptic number.

564226931 is a deficient number, since it is larger than the sum of its proper divisors (1).

564226931 is an equidigital number, since it uses as much as digits as its factorization.

564226931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 564226931 is about 23753.4614530177. The cubic root of 564226931 is about 826.3257196336.

The spelling of 564226931 in words is "five hundred sixty-four million, two hundred twenty-six thousand, nine hundred thirty-one".