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3117288 = 233129887
BaseRepresentation
bin1011111001000011101000
312212101010010
423321003220
51244223123
6150451520
735332206
oct13710350
95771103
103117288
11183a079
121063ba0
13851b65
145b2076
15418993
hex2f90e8

3117288 has 16 divisors (see below), whose sum is σ = 7793280. Its totient is φ = 1039088.

The previous prime is 3117281. The next prime is 3117293. The reversal of 3117288 is 8827113.

It is a happy number.

3117288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3117281) 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, 64920 + ... + 64967.

It is an arithmetic number, because the mean of its divisors is an integer number (487080).

Almost surely, 23117288 is an apocalyptic number.

It is an amenable number.

3117288 is an abundant number, since it is smaller than the sum of its proper divisors (4675992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3117288 is a wasteful number, since it uses less digits than its factorization.

3117288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129896 (or 129892 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 3117288 is about 1765.5843225403. The cubic root of 3117288 is about 146.0805210428.

The spelling of 3117288 in words is "three million, one hundred seventeen thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 129887 259774 389661 519548 779322 1039096 1558644 3117288