72820

72,820 is an even composite number composed of four prime numbers multiplied together.

What does the number 72820 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

72820 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 72820:

2² × 5 × 11 × 331

(2 × 2 × 5 × 11 × 331)

See below for interesting mathematical facts about the number 72820 from the Numbermatics database.

Names of 72820

Cardinal: 72820 can be written as Seventy-two thousand, eight hundred twenty.

Scientific notation

Scientific notation: 7.282 × 10⁴

Factors of 72820

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 349

Divisors of 72820

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 5 10 11 20 22 44 55 110 220 331 662 1324 1655 3310 3641 6620 7282 14564 18205 36410 72820
Sum of all divisors σ(n): 167328
Sum of proper divisors (its aliquot sum) s(n): 94508
72820 is an abundant number, because the sum of its proper divisors (94508) is greater than itself. Its abundance is 21688

Bases of 72820

Binary: 10001110001110100₂
Hexadecimal: 0x11C74
Base-36: 1K6S

Squares and roots of 72820

72820 squared (72820²) is 5302752400
72820 cubed (72820³) is 386146429768000
The square root of 72820 is 269.8518111853
The cube root of 72820 is 41.7590129585

Scales and comparisons

How big is 72820?

72,820 seconds is equal to 20 hours, 13 minutes, 40 seconds.
To count from 1 to 72,820 would take you about twenty 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 72820 cubic inches would be around 3.5 feet tall.

Recreational maths with 72820

72820 backwards is 02827
The number of decimal digits it has is: 5
The sum of 72820's digits is 19
More coming soon!

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The information we have on file for 72820 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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