21317840

21,317,840 is an even composite number composed of four prime numbers multiplied together.

What does the number 21317840 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

21317840 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21317840:

2⁴ × 5 × 439 × 607

(2 × 2 × 2 × 2 × 5 × 439 × 607)

See below for interesting mathematical facts about the number 21317840 from the Numbermatics database.

Names of 21317840

Cardinal: 21317840 can be written as Twenty-one million, three hundred seventeen thousand, eight hundred forty.

Scientific notation

Scientific notation: 2.131784 × 10⁷

Factors of 21317840

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 1053

Divisors of 21317840

Number of divisors d(n): 40
Complete list of divisors:
1 2 4 5 8 10 16 20 40 80 439 607 878 1214 1756 2195 2428 3035 3512 4390 4856 6070 7024 8780 9712 12140 17560 24280 35120 48560 266473 532946 1065892 1332365 2131784 2664730 4263568 5329460 10658920 21317840
Sum of all divisors σ(n): 49758720
Sum of proper divisors (its aliquot sum) s(n): 28440880
21317840 is an abundant number, because the sum of its proper divisors (28440880) is greater than itself. Its abundance is 7123040

Bases of 21317840

Binary: 1010001010100100011010000₂
Hexadecimal: 0x14548D0
Base-36: COWY8

Squares and roots of 21317840

21317840 squared (21317840²) is 454450302265600
21317840 cubed (21317840³) is 9687898831649698304000
The square root of 21317840 is 4617.1246463573
The cube root of 21317840 is 277.2773529969

Scales and comparisons

How big is 21317840?

21,317,840 seconds is equal to 35 weeks, 1 day, 17 hours, 37 minutes, 20 seconds.
To count from 1 to 21,317,840 would take you about six days!

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 21317840 cubic inches would be around 23.1 feet tall.

Recreational maths with 21317840

21317840 backwards is 04871312
The number of decimal digits it has is: 8
The sum of 21317840's digits is 26
More coming soon!

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The information we have on file for 21317840 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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