21400820

21,400,820 is an even composite number composed of five prime numbers multiplied together.

What does the number 21400820 look like?

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

21400820 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 21400820:

2² × 5 × 7 × 71 × 2153

(2 × 2 × 5 × 7 × 71 × 2153)

See below for interesting mathematical facts about the number 21400820 from the Numbermatics database.

Names of 21400820

Cardinal: 21400820 can be written as Twenty-one million, four hundred thousand, eight hundred twenty.

Scientific notation

Scientific notation: 2.140082 × 10⁷

Factors of 21400820

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 2238

Divisors of 21400820

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 7 10 14 20 28 35 70 71 140 142 284 355 497 710 994 1420 1988 2153 2485 4306 4970 8612 9940 10765 15071 21530 30142 43060 60284 75355 150710 152863 301420 305726 611452 764315 1070041 1528630 2140082 3057260 4280164 5350205 10700410 21400820
Sum of all divisors σ(n): 52109568
Sum of proper divisors (its aliquot sum) s(n): 30708748
21400820 is an abundant number, because the sum of its proper divisors (30708748) is greater than itself. Its abundance is 9307928

Bases of 21400820

Binary: 1010001101000110011110100₂
Hexadecimal: 0x1468CF4
Base-36: CQOZ8

Squares and roots of 21400820

21400820 squared (21400820²) is 457995096672400
21400820 cubed (21400820³) is 9801470624768631368000
The square root of 21400820 is 4626.1020308679
The cube root of 21400820 is 277.6366559019

Scales and comparisons

How big is 21400820?

21,400,820 seconds is equal to 35 weeks, 2 days, 16 hours, 40 minutes, 20 seconds.
To count from 1 to 21,400,820 would take you about thirteen 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 21400820 cubic inches would be around 23.1 feet tall.

Recreational maths with 21400820

21400820 backwards is 02800412
The number of decimal digits it has is: 8
The sum of 21400820's digits is 17
More coming soon!

Copy this link to share with anyone:

Share this page on social media:

Link to this page

HTML: To link to this page, just copy and paste the link below into your blog, web page or email.

<a href="https://numbermatics.com/n/21400820/?utm_source=shared">Number 21400820 - Facts about the integer</a>

BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:

[url=https://numbermatics.com/n/21400820/?utm_source=shared]Number 21400820 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 21400820 - Facts about the integer". Numbermatics.com. 2024. Web. 3 June 2024.

APA style:
Numbermatics. (2024). Number 21400820 - Facts about the integer. Retrieved 3 June 2024, from https://numbermatics.com/n/21400820/

Chicago style:
Numbermatics. 2024. "Number 21400820 - Facts about the integer". https://numbermatics.com/n/21400820/

The information we have on file for 21400820 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!

Keywords: Divisors of 21400820, math, Factors of 21400820, curriculum, school, college, exams, university, Prime factorization of 21400820, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, four hundred thousand, eight hundred twenty.