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7288868 = 221822217
BaseRepresentation
bin11011110011100000100100
3111201022110002
4123303200210
53331220433
6420120432
7115645226
oct33634044
914638402
107288868
114129264
122536118
131682852
14d7a416
1598e9e8
hex6f3824

7288868 has 6 divisors (see below), whose sum is σ = 12755526. Its totient is φ = 3644432.

The previous prime is 7288849. The next prime is 7288877. The reversal of 7288868 is 8688827.

It can be written as a sum of positive squares in only one way, i.e., 6801664 + 487204 = 2608^2 + 698^2 .

It is an unprimeable number.

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, 911105 + ... + 911112.

It is an arithmetic number, because the mean of its divisors is an integer number (2125921).

Almost surely, 27288868 is an apocalyptic number.

It is an amenable number.

7288868 is a deficient number, since it is larger than the sum of its proper divisors (5466658).

7288868 is a wasteful number, since it uses less digits than its factorization.

7288868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822221 (or 1822219 counting only the distinct ones).

The product of its digits is 344064, while the sum is 47.

The square root of 7288868 is about 2699.7903622319. The cubic root of 7288868 is about 193.8890852868.

The spelling of 7288868 in words is "seven million, two hundred eighty-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 1822217 3644434 7288868