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3287889 = 321133211
BaseRepresentation
bin1100100010101101010001
320012001010200
430202231101
51320203024
6154245413
736642453
oct14425521
96161120
103287889
111946270
121126869
138b16c7
146182d3
1544e2c9
hex322b51

3287889 has 12 divisors (see below), whose sum is σ = 5181072. Its totient is φ = 1992600.

The previous prime is 3287887. The next prime is 3287897. The reversal of 3287889 is 9887823.

It is not a de Polignac number, because 3287889 - 21 = 3287887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3287881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16507 + ... + 16704.

It is an arithmetic number, because the mean of its divisors is an integer number (431756).

Almost surely, 23287889 is an apocalyptic number.

It is an amenable number.

3287889 is a deficient number, since it is larger than the sum of its proper divisors (1893183).

3287889 is a wasteful number, since it uses less digits than its factorization.

3287889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33228 (or 33225 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 3287889 is about 1813.2537053595. The cubic root of 3287889 is about 148.6982014876.

The spelling of 3287889 in words is "three million, two hundred eighty-seven thousand, eight hundred eighty-nine".

Divisors: 1 3 9 11 33 99 33211 99633 298899 365321 1095963 3287889