19720

19,720 is an even composite number composed of four prime numbers multiplied together.

What does the number 19720 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

19720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 19720:

2³ × 5 × 17 × 29

(2 × 2 × 2 × 5 × 17 × 29)

See below for interesting mathematical facts about the number 19720 from the Numbermatics database.

Names of 19720

Cardinal: 19720 can be written as Nineteen thousand, seven hundred twenty.

Scientific notation

Scientific notation: 1.972 × 10⁴

Factors of 19720

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 53

Divisors of 19720

Number of divisors d(n): 32
Complete list of divisors:
1 2 4 5 8 10 17 20 29 34 40 58 68 85 116 136 145 170 232 290 340 493 580 680 986 1160 1972 2465 3944 4930 9860 19720
Sum of all divisors σ(n): 48600
Sum of proper divisors (its aliquot sum) s(n): 28880
19720 is an abundant number, because the sum of its proper divisors (28880) is greater than itself. Its abundance is 9160

Bases of 19720

Binary: 100110100001000₂
Hexadecimal: 0x4D08
Base-36: F7S

Squares and roots of 19720

19720 squared (19720²) is 388878400
19720 cubed (19720³) is 7668682048000
The square root of 19720 is 140.4279174525
The cube root of 19720 is 27.0169075629

Scales and comparisons

How big is 19720?

19,720 seconds is equal to 5 hours, 28 minutes, 40 seconds.
To count from 1 to 19,720 would take you about five 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 19720 cubic inches would be around 2.3 feet tall.

Recreational maths with 19720

19720 backwards is 02791
The number of decimal digits it has is: 5
The sum of 19720's digits is 19
More coming soon!

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The information we have on file for 19720 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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