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2820017 is a prime number
BaseRepresentation
bin1010110000011110110001
312022021100002
422300132301
51210220032
6140235345
732653424
oct12603661
95267302
102820017
1116567a2
12b3bb55
13779765
145359bb
153aa862
hex2b07b1

2820017 has 2 divisors, whose sum is σ = 2820018. Its totient is φ = 2820016.

The previous prime is 2820001. The next prime is 2820019. The reversal of 2820017 is 7100282.

2820017 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 can be written as a sum of positive squares in only one way, i.e., 2307361 + 512656 = 1519^2 + 716^2 .

It is a cyclic number.

It is not a de Polignac number, because 2820017 - 24 = 2820001 is a prime.

Together with 2820019, 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 (2820019) 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, 1410008 + 1410009.

It is an arithmetic number, because the mean of its divisors is an integer number (1410009).

22820017 is an apocalyptic number.

It is an amenable number.

2820017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2820017 is an equidigital number, since it uses as much as digits as its factorization.

2820017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2820017 is about 1679.2906240434. The cubic root of 2820017 is about 141.2810483344.

Adding to 2820017 its reverse (7100282), we get a palindrome (9920299).

The spelling of 2820017 in words is "two million, eight hundred twenty thousand, seventeen".