21381472

21,381,472 is an even composite number composed of four prime numbers multiplied together.

What does the number 21381472 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

21381472 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21381472:

2⁵ × 7 × 53 × 1801

(2 × 2 × 2 × 2 × 2 × 7 × 53 × 1801)

See below for interesting mathematical facts about the number 21381472 from the Numbermatics database.

Names of 21381472

Cardinal: 21381472 can be written as Twenty-one million, three hundred eighty-one thousand, four hundred seventy-two.

Scientific notation

Scientific notation: 2.1381472 × 10⁷

Factors of 21381472

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 8
Sum of prime factors: 1863

Divisors of 21381472

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 7 8 14 16 28 32 53 56 106 112 212 224 371 424 742 848 1484 1696 1801 2968 3602 5936 7204 11872 12607 14408 25214 28816 50428 57632 95453 100856 190906 201712 381812 403424 668171 763624 1336342 1527248 2672684 3054496 5345368 10690736 21381472
Sum of all divisors σ(n): 49043232
Sum of proper divisors (its aliquot sum) s(n): 27661760
21381472 is an abundant number, because the sum of its proper divisors (27661760) is greater than itself. Its abundance is 6280288

Bases of 21381472

Binary: 1010001100100000101100000₂
Hexadecimal: 0x1464160
Base-36: CQA1S

Squares and roots of 21381472

21381472 squared (21381472²) is 457167344886784
21381472 cubed (21381472³) is 9774910784011115266048
The square root of 21381472 is 4624.0103806109
The cube root of 21381472 is 277.5529623231

Scales and comparisons

How big is 21381472?

21,381,472 seconds is equal to 35 weeks, 2 days, 11 hours, 17 minutes, 52 seconds.
To count from 1 to 21,381,472 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 21381472 cubic inches would be around 23.1 feet tall.

Recreational maths with 21381472

21381472 backwards is 27418312
21381472 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21381472's digits is 28
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/21381472/?utm_source=shared">Number 21381472 - 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/21381472/?utm_source=shared]Number 21381472 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 21381472 - Facts about the integer". Numbermatics.com. 2024. Web. 9 May 2024.

APA style:
Numbermatics. (2024). Number 21381472 - Facts about the integer. Retrieved 9 May 2024, from https://numbermatics.com/n/21381472/

Chicago style:
Numbermatics. 2024. "Number 21381472 - Facts about the integer". https://numbermatics.com/n/21381472/

The information we have on file for 21381472 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 21381472, math, Factors of 21381472, curriculum, school, college, exams, university, Prime factorization of 21381472, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, three hundred eighty-one thousand, four hundred seventy-two.