28666989

28,666,989 is an odd composite number composed of four prime numbers multiplied together.

What does the number 28666989 look like?

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

28666989 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 28666989:

3² × 13 × 89 × 2753

(3 × 3 × 13 × 89 × 2753)

See below for interesting mathematical facts about the number 28666989 from the Numbermatics database.

Names of 28666989

Cardinal: 28666989 can be written as Twenty-eight million, six hundred sixty-six thousand, nine hundred eighty-nine.

Scientific notation

Scientific notation: 2.8666989 × 10⁷

Factors of 28666989

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 2858

Divisors of 28666989

Number of divisors d(n): 24
Complete list of divisors:
1 3 9 13 39 89 117 267 801 1157 2753 3471 8259 10413 24777 35789 107367 245017 322101 735051 2205153 3185221 9555663 28666989
Sum of all divisors σ(n): 45110520
Sum of proper divisors (its aliquot sum) s(n): 16443531
28666989 is a deficient number, because the sum of its proper divisors (16443531) is less than itself. Its deficiency is 12223458

Bases of 28666989

Binary: 1101101010110110001101101₂
Hexadecimal: 0x1B56C6D
Base-36: H2FL9

Squares and roots of 28666989

28666989 squared (28666989²) is 821796258326121
28666989 cubed (28666989³) is 23558424297676069119669
The square root of 28666989 is 5354.1562360469
The cube root of 28666989 is 306.0511576651

Scales and comparisons

How big is 28666989?

28,666,989 seconds is equal to 47 weeks, 2 days, 19 hours, 3 minutes, 9 seconds.
To count from 1 to 28,666,989 would take you about nineteen 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 28666989 cubic inches would be around 25.5 feet tall.

Recreational maths with 28666989

28666989 backwards is 98966682
The number of decimal digits it has is: 8
The sum of 28666989's digits is 54
More coming soon!

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The information we have on file for 28666989 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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