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28868300 = 2252288683
BaseRepresentation
bin110111000011…
…1111011001100
32000022122212022
41232013323030
524342241200
62510425312
7500243066
oct156077314
960278768
1028868300
11153281aa
129802238
135c99b46
143b96736
152803885
hex1b87ecc

28868300 has 18 divisors (see below), whose sum is σ = 62644428. Its totient is φ = 11547280.

The previous prime is 28868299. The next prime is 28868321. The reversal of 28868300 is 386882.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144242 + ... + 144441.

It is an arithmetic number, because the mean of its divisors is an integer number (3480246).

Almost surely, 228868300 is an apocalyptic number.

28868300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28868300 is an abundant number, since it is smaller than the sum of its proper divisors (33776128).

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

28868300 is a wasteful number, since it uses less digits than its factorization.

28868300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288697 (or 288690 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 28868300 is about 5372.9228544620. The cubic root of 28868300 is about 306.7658915419.

The spelling of 28868300 in words is "twenty-eight million, eight hundred sixty-eight thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 288683 577366 1154732 1443415 2886830 5773660 7217075 14434150 28868300