21389712

21,389,712 is an even composite number composed of three prime numbers multiplied together.

What does the number 21389712 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 20 divisors.

21389712 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 21389712:

2⁴ × 3 × 445619

(2 × 2 × 2 × 2 × 3 × 445619)

See below for interesting mathematical facts about the number 21389712 from the Numbermatics database.

Names of 21389712

Cardinal: 21389712 can be written as Twenty-one million, three hundred eighty-nine thousand, seven hundred twelve.

Scientific notation

Scientific notation: 2.1389712 × 10⁷

Factors of 21389712

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 445624

Divisors of 21389712

Number of divisors d(n): 20
Complete list of divisors:
1 2 3 4 6 8 12 16 24 48 445619 891238 1336857 1782476 2673714 3564952 5347428 7129904 10694856 21389712
Sum of all divisors σ(n): 55256880
Sum of proper divisors (its aliquot sum) s(n): 33867168
21389712 is an abundant number, because the sum of its proper divisors (33867168) is greater than itself. Its abundance is 12477456

Bases of 21389712

Binary: 1010001100110000110010000₂
Hexadecimal: 0x1466190
Base-36: CQGEO

Squares and roots of 21389712

21389712 squared (21389712²) is 457519779442944
21389712 cubed (21389712³) is 9786216316588092592128
The square root of 21389712 is 4624.9012962441
The cube root of 21389712 is 277.5886122335

Scales and comparisons

How big is 21389712?

21,389,712 seconds is equal to 35 weeks, 2 days, 13 hours, 35 minutes, 12 seconds.
To count from 1 to 21,389,712 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 21389712 cubic inches would be around 23.1 feet tall.

Recreational maths with 21389712

21389712 backwards is 21798312
The number of decimal digits it has is: 8
The sum of 21389712's digits is 33
More coming soon!

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The information we have on file for 21389712 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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