28128

28,128 is an even composite number composed of three prime numbers multiplied together.

What does the number 28128 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 24 divisors.

28128 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 28128:

2⁵ × 3 × 293

(2 × 2 × 2 × 2 × 2 × 3 × 293)

See below for interesting mathematical facts about the number 28128 from the Numbermatics database.

Names of 28128

Cardinal: 28128 can be written as Twenty-eight thousand, one hundred twenty-eight.

Scientific notation

Scientific notation: 2.8128 × 10⁴

Factors of 28128

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 7
Sum of prime factors: 298

Divisors of 28128

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 4 6 8 12 16 24 32 48 96 293 586 879 1172 1758 2344 3516 4688 7032 9376 14064 28128
Sum of all divisors σ(n): 74088
Sum of proper divisors (its aliquot sum) s(n): 45960
28128 is an abundant number, because the sum of its proper divisors (45960) is greater than itself. Its abundance is 17832

Bases of 28128

Binary: 110110111100000₂
Hexadecimal: 0x6DE0
Base-36: LPC

Squares and roots of 28128

28128 squared (28128²) is 791184384
28128 cubed (28128³) is 22254434353152
The square root of 28128 is 167.7140423459
The cube root of 28128 is 30.4120912197

Scales and comparisons

How big is 28128?

28,128 seconds is equal to 7 hours, 48 minutes, 48 seconds.
To count from 1 to 28,128 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 28128 cubic inches would be around 2.5 feet tall.

Recreational maths with 28128

28128 backwards is 82182
The number of decimal digits it has is: 5
The sum of 28128's digits is 21
More coming soon!

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The information we have on file for 28128 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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