21997020

21,997,020 is an even composite number composed of five prime numbers multiplied together.

What does the number 21997020 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21997020 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21997020:

2² × 3 × 5 × 197 × 1861

(2 × 2 × 3 × 5 × 197 × 1861)

See below for interesting mathematical facts about the number 21997020 from the Numbermatics database.

Names of 21997020

Cardinal: 21997020 can be written as Twenty-one million, nine hundred ninety-seven thousand and twenty.

Scientific notation

Scientific notation: 2.199702 × 10⁷

Factors of 21997020

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 2068

Divisors of 21997020

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 5 6 10 12 15 20 30 60 197 394 591 788 985 1182 1861 1970 2364 2955 3722 3940 5583 5910 7444 9305 11166 11820 18610 22332 27915 37220 55830 111660 366617 733234 1099851 1466468 1833085 2199702 3666170 4399404 5499255 7332340 10998510 21997020
Sum of all divisors σ(n): 61937568
Sum of proper divisors (its aliquot sum) s(n): 39940548
21997020 is an abundant number, because the sum of its proper divisors (39940548) is greater than itself. Its abundance is 17943528

Bases of 21997020

Binary: 1010011111010010111011100₂
Hexadecimal: 0x14FA5DC
Base-36: D3H0C

Squares and roots of 21997020

21997020 squared (21997020²) is 483868888880400
21997020 cubed (21997020³) is 10643673626079936408000
The square root of 21997020 is 4690.0980799981
The cube root of 21997020 is 280.1912808621

Scales and comparisons

How big is 21997020?

21,997,020 seconds is equal to 36 weeks, 2 days, 14 hours, 17 minutes.
To count from 1 to 21,997,020 would take you about two weeks!

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 21997020 cubic inches would be around 23.3 feet tall.

Recreational maths with 21997020

21997020 backwards is 02079912
21997020 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21997020's digits is 30
More coming soon!

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The information we have on file for 21997020 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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