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565002281 is a prime number
BaseRepresentation
bin100001101011010…
…100000000101001
31110101011002102102
4201223110000221
52124120033111
6132021543145
720000303654
oct4153240051
91411132372
10565002281
1126aa24638
12139274ab5
1390093b9c
145507689b
153490813b
hex21ad4029

565002281 has 2 divisors, whose sum is σ = 565002282. Its totient is φ = 565002280.

The previous prime is 565002239. The next prime is 565002283. The reversal of 565002281 is 182200565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 445843225 + 119159056 = 21115^2 + 10916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-565002281 is a prime.

It is a super-2 number, since 2×5650022812 = 638455155070405922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 565002283, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (565002283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282501140 + 282501141.

It is an arithmetic number, because the mean of its divisors is an integer number (282501141).

Almost surely, 2565002281 is an apocalyptic number.

It is an amenable number.

565002281 is a deficient number, since it is larger than the sum of its proper divisors (1).

565002281 is an equidigital number, since it uses as much as digits as its factorization.

565002281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 565002281 is about 23769.7766291566. The cubic root of 565002281 is about 826.7040534564.

The spelling of 565002281 in words is "five hundred sixty-five million, two thousand, two hundred eighty-one".