2821989

2,821,989 is an odd composite number composed of three prime numbers multiplied together.

What does the number 2821989 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

2821989 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 2821989:

3 × 41 × 22943

See below for interesting mathematical facts about the number 2821989 from the Numbermatics database.

Names of 2821989

Cardinal: 2821989 can be written as Two million, eight hundred twenty-one thousand, nine hundred eighty-nine.

Scientific notation

Scientific notation: 2.821989 × 10⁶

Factors of 2821989

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 22987

Divisors of 2821989

Number of divisors d(n): 8
Complete list of divisors:
1 3 41 123 22943 68829 940663 2821989
Sum of all divisors σ(n): 3854592
Sum of proper divisors (its aliquot sum) s(n): 1032603
2821989 is a deficient number, because the sum of its proper divisors (1032603) is less than itself. Its deficiency is 1789386

Bases of 2821989

Binary: 1010110000111101100101₂
Hexadecimal: 0x2B0F65
Base-36: 1OHGL

Squares and roots of 2821989

2821989 squared (2821989²) is 7963621916121
2821989 cubed (2821989³) is 22473253447452384669
The square root of 2821989 is 1679.8776741179
The cube root of 2821989 is 141.3139726407

Scales and comparisons

How big is 2821989?

2,821,989 seconds is equal to 4 weeks, 4 days, 15 hours, 53 minutes, 9 seconds.
To count from 1 to 2,821,989 would take you about six 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 2821989 cubic inches would be around 11.8 feet tall.

Recreational maths with 2821989

2821989 backwards is 9891282
The number of decimal digits it has is: 7
The sum of 2821989's digits is 39
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/2821989/?utm_source=shared">Number 2821989 - 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/2821989/?utm_source=shared]Number 2821989 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 2821989 - Facts about the integer". Numbermatics.com. 2024. Web. 2 May 2024.

APA style:
Numbermatics. (2024). Number 2821989 - Facts about the integer. Retrieved 2 May 2024, from https://numbermatics.com/n/2821989/

Chicago style:
Numbermatics. 2024. "Number 2821989 - Facts about the integer". https://numbermatics.com/n/2821989/

The information we have on file for 2821989 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 2821989, math, Factors of 2821989, curriculum, school, college, exams, university, Prime factorization of 2821989, STEM, science, technology, engineering, physics, economics, calculator, two million, eight hundred twenty-one thousand, nine hundred eighty-nine.