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3881489 = 6835683
BaseRepresentation
bin1110110011101000010001
321022012101212
432303220101
51443201424
6215105505
744664203
oct16635021
97265355
103881489
112211247
121372295
13a5b951
14730773
1551a10e
hex3b3a11

3881489 has 4 divisors (see below), whose sum is σ = 3887856. Its totient is φ = 3875124.

The previous prime is 3881467. The next prime is 3881509. The reversal of 3881489 is 9841883.

3881489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9841883 = 43228881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3881489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3881419) 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 in 3 ways as a sum of consecutive naturals, for example, 2159 + ... + 3524.

It is an arithmetic number, because the mean of its divisors is an integer number (971964).

Almost surely, 23881489 is an apocalyptic number.

It is an amenable number.

3881489 is a deficient number, since it is larger than the sum of its proper divisors (6367).

3881489 is an equidigital number, since it uses as much as digits as its factorization.

3881489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6366.

The product of its digits is 55296, while the sum is 41.

The square root of 3881489 is about 1970.1494867141. The cubic root of 3881489 is about 157.1566586461.

The spelling of 3881489 in words is "three million, eight hundred eighty-one thousand, four hundred eighty-nine".

Divisors: 1 683 5683 3881489