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3885281 is a prime number
BaseRepresentation
bin1110110100100011100001
321022101121022
432310203201
51443312111
6215135225
745011231
oct16644341
97271538
103885281
112214084
121374515
13a605aa
14731cc1
1551b2db
hex3b48e1

3885281 has 2 divisors, whose sum is σ = 3885282. Its totient is φ = 3885280.

The previous prime is 3885251. The next prime is 3885293. The reversal of 3885281 is 1825883.

3885281 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., 3841600 + 43681 = 1960^2 + 209^2 .

It is an emirp because it is prime and its reverse (1825883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3885281 - 214 = 3868897 is a prime.

It is a super-2 number, since 2×38852812 = 30190816897922, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3885221) 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, 1942640 + 1942641.

It is an arithmetic number, because the mean of its divisors is an integer number (1942641).

Almost surely, 23885281 is an apocalyptic number.

It is an amenable number.

3885281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3885281 is an equidigital number, since it uses as much as digits as its factorization.

3885281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 35.

The square root of 3885281 is about 1971.1116153075. Note that the first 3 decimals coincide. The cubic root of 3885281 is about 157.2078197760.

The spelling of 3885281 in words is "three million, eight hundred eighty-five thousand, two hundred eighty-one".