21420936

21,420,936 is an even composite number composed of three prime numbers multiplied together.

What does the number 21420936 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 56 divisors.

21420936 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of fifty-six divisors.

Prime factorization of 21420936:

2³ × 3⁶ × 3673

(2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3673)

See below for interesting mathematical facts about the number 21420936 from the Numbermatics database.

Names of 21420936

Cardinal: 21420936 can be written as Twenty-one million, four hundred twenty thousand, nine hundred thirty-six.

Scientific notation

Scientific notation: 2.1420936 × 10⁷

Factors of 21420936

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 10
Sum of prime factors: 3678

Divisors of 21420936

Number of divisors d(n): 56
Complete list of divisors:
1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 729 972 1458 1944 2916 3673 5832 7346 11019 14692 22038 29384 33057 44076 66114 88152 99171 132228 198342 264456 297513 396684 595026 793368 892539 1190052 1785078 2380104 2677617 3570156 5355234 7140312 10710468 21420936
Sum of all divisors σ(n): 60235230
Sum of proper divisors (its aliquot sum) s(n): 38814294
21420936 is an abundant number, because the sum of its proper divisors (38814294) is greater than itself. Its abundance is 17393358

Bases of 21420936

Binary: 1010001101101101110001000₂
Hexadecimal: 0x146DB88
Base-36: CR4I0

Squares and roots of 21420936

21420936 squared (21420936²) is 458856499116096
21420936 cubed (21420936³) is 9829135700749948985856
The square root of 21420936 is 4628.2757048389
The cube root of 21420936 is 277.7236181461

Scales and comparisons

How big is 21420936?

21,420,936 seconds is equal to 35 weeks, 2 days, 22 hours, 15 minutes, 36 seconds.
To count from 1 to 21,420,936 would take you about twenty-one 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 21420936 cubic inches would be around 23.1 feet tall.

Recreational maths with 21420936

21420936 backwards is 63902412
21420936 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21420936's digits is 27
More coming soon!

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The information we have on file for 21420936 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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