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3222281 is a prime number
BaseRepresentation
bin1100010010101100001001
320001201010202
430102230021
51311103111
6153021545
736250256
oct14225411
96051122
103222281
111900a47
1210b48b5
1388a89a
145dc42d
15439b3b
hex312b09

3222281 has 2 divisors, whose sum is σ = 3222282. Its totient is φ = 3222280.

The previous prime is 3222269. The next prime is 3222287. The reversal of 3222281 is 1822223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3222025 + 256 = 1795^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 3222281 - 26 = 3222217 is a prime.

It is a super-2 number, since 2×32222812 = 20766189685922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3222287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611140 + 1611141.

It is an arithmetic number, because the mean of its divisors is an integer number (1611141).

Almost surely, 23222281 is an apocalyptic number.

It is an amenable number.

3222281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3222281 is an equidigital number, since it uses as much as digits as its factorization.

3222281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 20.

The square root of 3222281 is about 1795.0713077758. The cubic root of 3222281 is about 147.7024854779.

The spelling of 3222281 in words is "three million, two hundred twenty-two thousand, two hundred eighty-one".