21389589

21,389,589 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21389589 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 56 divisors.

21389589 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.

Prime factorization of 21389589:

3⁶ × 13 × 37 × 61

(3 × 3 × 3 × 3 × 3 × 3 × 13 × 37 × 61)

See below for interesting mathematical facts about the number 21389589 from the Numbermatics database.

Names of 21389589

Cardinal: 21389589 can be written as Twenty-one million, three hundred eighty-nine thousand, five hundred eighty-nine.

Scientific notation

Scientific notation: 2.1389589 × 10⁷

Factors of 21389589

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 9
Sum of prime factors: 114

Divisors of 21389589

Number of divisors d(n): 56
Complete list of divisors:
1 3 9 13 27 37 39 61 81 111 117 183 243 333 351 481 549 729 793 999 1053 1443 1647 2257 2379 2997 3159 4329 4941 6771 7137 8991 9477 12987 14823 20313 21411 26973 29341 38961 44469 60939 64233 88023 116883 182817 192699 264069 350649 548451 578097 792207 1645353 2376621 7129863 21389589
Sum of all divisors σ(n): 36051512
Sum of proper divisors (its aliquot sum) s(n): 14661923
21389589 is a deficient number, because the sum of its proper divisors (14661923) is less than itself. Its deficiency is 6727666

Bases of 21389589

Binary: 1010001100110000100010101₂
Hexadecimal: 0x1466115
Base-36: CQGB9

Squares and roots of 21389589

21389589 squared (21389589²) is 457514517588921
21389589 cubed (21389589³) is 9786047492760291143469
The square root of 21389589 is 4624.8879986439
The cube root of 21389589 is 277.5880801479

Scales and comparisons

How big is 21389589?

21,389,589 seconds is equal to 35 weeks, 2 days, 13 hours, 33 minutes, 9 seconds.
To count from 1 to 21,389,589 would take you about eight 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 21389589 cubic inches would be around 23.1 feet tall.

Recreational maths with 21389589

21389589 backwards is 98598312
The number of decimal digits it has is: 8
The sum of 21389589's digits is 45
More coming soon!

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The information we have on file for 21389589 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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