21438887

21,438,887 is an odd composite number composed of three prime numbers multiplied together.

What does the number 21438887 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

21438887 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 21438887:

17² × 31 × 2393

(17 × 17 × 31 × 2393)

See below for interesting mathematical facts about the number 21438887 from the Numbermatics database.

Names of 21438887

Cardinal: 21438887 can be written as Twenty-one million, four hundred thirty-eight thousand, eight hundred eighty-seven.

Scientific notation

Scientific notation: 2.1438887 × 10⁷

Factors of 21438887

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 2441

Divisors of 21438887

Number of divisors d(n): 12
Complete list of divisors:
1 17 31 289 527 2393 8959 40681 74183 691577 1261111 21438887
Sum of all divisors σ(n): 23518656
Sum of proper divisors (its aliquot sum) s(n): 2079769
21438887 is a deficient number, because the sum of its proper divisors (2079769) is less than itself. Its deficiency is 19359118

Bases of 21438887

Binary: 1010001110010000110100111₂
Hexadecimal: 0x14721A7
Base-36: CRICN

Squares and roots of 21438887

21438887 squared (21438887²) is 459625875798769
21438887 cubed (21438887³) is 9853867213525843330103
The square root of 21438887 is 4630.2145738615
The cube root of 21438887 is 277.8011750543

Scales and comparisons

How big is 21438887?

21,438,887 seconds is equal to 35 weeks, 3 days, 3 hours, 14 minutes, 47 seconds.
To count from 1 to 21,438,887 would take you about four 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 21438887 cubic inches would be around 23.2 feet tall.

Recreational maths with 21438887

21438887 backwards is 78883412
The number of decimal digits it has is: 8
The sum of 21438887's digits is 41
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/21438887/?utm_source=shared">Number 21438887 - 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/21438887/?utm_source=shared]Number 21438887 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 21438887 - Facts about the integer". Numbermatics.com. 2024. Web. 30 May 2024.

APA style:
Numbermatics. (2024). Number 21438887 - Facts about the integer. Retrieved 30 May 2024, from https://numbermatics.com/n/21438887/

Chicago style:
Numbermatics. 2024. "Number 21438887 - Facts about the integer". https://numbermatics.com/n/21438887/

The information we have on file for 21438887 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 21438887, math, Factors of 21438887, curriculum, school, college, exams, university, Prime factorization of 21438887, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, four hundred thirty-eight thousand, eight hundred eighty-seven.