28138689

28,138,689 is an odd composite number composed of four prime numbers multiplied together.

What does the number 28138689 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

28138689 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 28138689:

3² × 17 × 353 × 521

(3 × 3 × 17 × 353 × 521)

See below for interesting mathematical facts about the number 28138689 from the Numbermatics database.

Names of 28138689

Cardinal: 28138689 can be written as Twenty-eight million, one hundred thirty-eight thousand, six hundred eighty-nine.

Scientific notation

Scientific notation: 2.8138689 × 10⁷

Factors of 28138689

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 894

Divisors of 28138689

Number of divisors d(n): 24
Complete list of divisors:
1 3 9 17 51 153 353 521 1059 1563 3177 4689 6001 8857 18003 26571 54009 79713 183913 551739 1655217 3126521 9379563 28138689
Sum of all divisors σ(n): 43240392
Sum of proper divisors (its aliquot sum) s(n): 15101703
28138689 is a deficient number, because the sum of its proper divisors (15101703) is less than itself. Its deficiency is 13036986

Bases of 28138689

Binary: 1101011010101110011000001₂
Hexadecimal: 0x1AD5CC1
Base-36: GR3Y9

Squares and roots of 28138689

28138689 squared (28138689²) is 791785818638721
28138689 cubed (28138689³) is 22279814905285373576769
The square root of 28138689 is 5304.5913131927
The cube root of 28138689 is 304.1594305987

Scales and comparisons

How big is 28138689?

28,138,689 seconds is equal to 46 weeks, 3 days, 16 hours, 18 minutes, 9 seconds.
To count from 1 to 28,138,689 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 28138689 cubic inches would be around 25.3 feet tall.

Recreational maths with 28138689

28138689 backwards is 98683182
The number of decimal digits it has is: 8
The sum of 28138689's digits is 45
More coming soon!

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The information we have on file for 28138689 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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