28079721

28,079,721 is an odd composite number composed of three prime numbers multiplied together.

What does the number 28079721 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

28079721 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 28079721:

3² × 263 × 11863

(3 × 3 × 263 × 11863)

See below for interesting mathematical facts about the number 28079721 from the Numbermatics database.

Names of 28079721

Cardinal: 28079721 can be written as Twenty-eight million, seventy-nine thousand, seven hundred twenty-one.

Scientific notation

Scientific notation: 2.8079721 × 10⁷

Factors of 28079721

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 12129

Divisors of 28079721

Number of divisors d(n): 12
Complete list of divisors:
1 3 9 263 789 2367 11863 35589 106767 3119969 9359907 28079721
Sum of all divisors σ(n): 40717248
Sum of proper divisors (its aliquot sum) s(n): 12637527
28079721 is a deficient number, because the sum of its proper divisors (12637527) is less than itself. Its deficiency is 15442194

Bases of 28079721

Binary: 1101011000111011001101001₂
Hexadecimal: 0x1AC7669
Base-36: GPUG9

Squares and roots of 28079721

28079721 squared (28079721²) is 788470731437841
28079721 cubed (28079721³) is 22140038155440504122361
The square root of 28079721 is 5299.0301942903
The cube root of 28079721 is 303.9468144779

Scales and comparisons

How big is 28079721?

28,079,721 seconds is equal to 46 weeks, 2 days, 23 hours, 55 minutes, 21 seconds.
To count from 1 to 28,079,721 would take you about seventeen weeks!

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 28079721 cubic inches would be around 25.3 feet tall.

Recreational maths with 28079721

28079721 backwards is 12797082
The number of decimal digits it has is: 8
The sum of 28079721's digits is 36
More coming soon!

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The information we have on file for 28079721 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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