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4288889 = 111920521
BaseRepresentation
bin10000010111000101111001
322001220020202
4100113011321
52044221024
6231531545
751312023
oct20270571
98056222
104288889
11246a340
121529bb5
13b72207
147d9013
1559abae
hex417179

4288889 has 8 divisors (see below), whose sum is σ = 4925280. Its totient is φ = 3693600.

The previous prime is 4288883. The next prime is 4288901. The reversal of 4288889 is 9888824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4288889 - 24 = 4288873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4288883) 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 7 ways as a sum of consecutive naturals, for example, 10052 + ... + 10469.

It is an arithmetic number, because the mean of its divisors is an integer number (615660).

Almost surely, 24288889 is an apocalyptic number.

It is an amenable number.

4288889 is a deficient number, since it is larger than the sum of its proper divisors (636391).

4288889 is a wasteful number, since it uses less digits than its factorization.

4288889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20551.

The product of its digits is 294912, while the sum is 47.

The square root of 4288889 is about 2070.9633024272. The cubic root of 4288889 is about 162.4731505936.

The spelling of 4288889 in words is "four million, two hundred eighty-eight thousand, eight hundred eighty-nine".

Divisors: 1 11 19 209 20521 225731 389899 4288889