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5228161 is a prime number
BaseRepresentation
bin10011111100011010000001
3100211121200121
4103330122001
52314300121
6304020241
762303311
oct23743201
910747617
105228161
112a50aa4
121901681
1311108b3
149a1441
156d4141
hex4fc681

5228161 has 2 divisors, whose sum is σ = 5228162. Its totient is φ = 5228160.

The previous prime is 5228159. The next prime is 5228189. The reversal of 5228161 is 1618225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3538161 + 1690000 = 1881^2 + 1300^2 .

It is a cyclic number.

It is not a de Polignac number, because 5228161 - 21 = 5228159 is a prime.

Together with 5228159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5228101) 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, 2614080 + 2614081.

It is an arithmetic number, because the mean of its divisors is an integer number (2614081).

Almost surely, 25228161 is an apocalyptic number.

It is an amenable number.

5228161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5228161 is an equidigital number, since it uses as much as digits as its factorization.

5228161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 25.

The square root of 5228161 is about 2286.5172205781. The cubic root of 5228161 is about 173.5600038286.

It can be divided in two parts, 5 and 228161, that multiplied together give a triangular number (1140805 = T1510).

The spelling of 5228161 in words is "five million, two hundred twenty-eight thousand, one hundred sixty-one".