21389460

21,389,460 is an even composite number composed of five prime numbers multiplied together.

What does the number 21389460 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21389460 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21389460:

2² × 3 × 5 × 71 × 5021

(2 × 2 × 3 × 5 × 71 × 5021)

See below for interesting mathematical facts about the number 21389460 from the Numbermatics database.

Names of 21389460

Cardinal: 21389460 can be written as Twenty-one million, three hundred eighty-nine thousand, four hundred sixty.

Scientific notation

Scientific notation: 2.138946 × 10⁷

Factors of 21389460

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 5102

Divisors of 21389460

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 5 6 10 12 15 20 30 60 71 142 213 284 355 426 710 852 1065 1420 2130 4260 5021 10042 15063 20084 25105 30126 50210 60252 75315 100420 150630 301260 356491 712982 1069473 1425964 1782455 2138946 3564910 4277892 5347365 7129820 10694730 21389460
Sum of all divisors σ(n): 60746112
Sum of proper divisors (its aliquot sum) s(n): 39356652
21389460 is an abundant number, because the sum of its proper divisors (39356652) is greater than itself. Its abundance is 17967192

Bases of 21389460

Binary: 1010001100110000010010100₂
Hexadecimal: 0x1466094
Base-36: CQG7O

Squares and roots of 21389460

21389460 squared (21389460²) is 457508999091600
21389460 cubed (21389460³) is 9785870435709814536000
The square root of 21389460 is 4624.8740523391
The cube root of 21389460 is 277.5875221049

Scales and comparisons

How big is 21389460?

21,389,460 seconds is equal to 35 weeks, 2 days, 13 hours, 31 minutes.
To count from 1 to 21,389,460 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 21389460 cubic inches would be around 23.1 feet tall.

Recreational maths with 21389460

21389460 backwards is 06498312
The number of decimal digits it has is: 8
The sum of 21389460's digits is 33
More coming soon!

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The information we have on file for 21389460 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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