28704

28,704 is an even composite number composed of four prime numbers multiplied together.

What does the number 28704 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

28704 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 28704:

2⁵ × 3 × 13 × 23

(2 × 2 × 2 × 2 × 2 × 3 × 13 × 23)

See below for interesting mathematical facts about the number 28704 from the Numbermatics database.

Names of 28704

Cardinal: 28704 can be written as Twenty-eight thousand, seven hundred four.

Scientific notation

Scientific notation: 2.8704 × 10⁴

Factors of 28704

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 8
Sum of prime factors: 41

Divisors of 28704

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 6 8 12 13 16 23 24 26 32 39 46 48 52 69 78 92 96 104 138 156 184 208 276 299 312 368 416 552 598 624 736 897 1104 1196 1248 1794 2208 2392 3588 4784 7176 9568 14352 28704
Sum of all divisors σ(n): 84672
Sum of proper divisors (its aliquot sum) s(n): 55968
28704 is an abundant number, because the sum of its proper divisors (55968) is greater than itself. Its abundance is 27264

Bases of 28704

Binary: 111000000100000₂
Hexadecimal: 0x7020
Base-36: M5C

Squares and roots of 28704

28704 squared (28704²) is 823919616
28704 cubed (28704³) is 23649788657664
The square root of 28704 is 169.4225486763
The cube root of 28704 is 30.6182811861

Scales and comparisons

How big is 28704?

28,704 seconds is equal to 7 hours, 58 minutes, 24 seconds.
To count from 1 to 28,704 would take you about seven hours.

This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
A cube with a volume of 28704 cubic inches would be around 2.6 feet tall.

Recreational maths with 28704

28704 backwards is 40782
The number of decimal digits it has is: 5
The sum of 28704's digits is 21
More coming soon!

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The information we have on file for 28704 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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