28473991

28,473,991 is an odd composite number composed of four prime numbers multiplied together.

What does the number 28473991 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

28473991 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 28473991:

7 × 13 × 157 × 1993

See below for interesting mathematical facts about the number 28473991 from the Numbermatics database.

Names of 28473991

Cardinal: 28473991 can be written as Twenty-eight million, four hundred seventy-three thousand, nine hundred ninety-one.

Scientific notation

Scientific notation: 2.8473991 × 10⁷

Factors of 28473991

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 2170

Divisors of 28473991

Number of divisors d(n): 16
Complete list of divisors:
1 7 13 91 157 1099 1993 2041 13951 14287 25909 181363 312901 2190307 4067713 28473991
Sum of all divisors σ(n): 35285824
Sum of proper divisors (its aliquot sum) s(n): 6811833
28473991 is a deficient number, because the sum of its proper divisors (6811833) is less than itself. Its deficiency is 21662158

Bases of 28473991

Binary: 1101100100111101010000111₂
Hexadecimal: 0x1B27A87
Base-36: GYAO7

Squares and roots of 28473991

28473991 squared (28473991²) is 810768163468081
28473991 cubed (28473991³) is 23085805389676667181271
The square root of 28473991 is 5336.1026039609
The cube root of 28473991 is 305.3627896563

Scales and comparisons

How big is 28473991?

28,473,991 seconds is equal to 47 weeks, 13 hours, 26 minutes, 31 seconds.
To count from 1 to 28,473,991 would take you about eighteen 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 28473991 cubic inches would be around 25.4 feet tall.

Recreational maths with 28473991

28473991 backwards is 19937482
The number of decimal digits it has is: 8
The sum of 28473991's digits is 43
More coming soon!

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The information we have on file for 28473991 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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