81532728

81,532,728 is an even composite number composed of four prime numbers multiplied together.

What does the number 81532728 look like?

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

81532728 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 81532728:

2³ × 3² × 31 × 36529

(2 × 2 × 2 × 3 × 3 × 31 × 36529)

See below for interesting mathematical facts about the number 81532728 from the Numbermatics database.

Names of 81532728

Cardinal: 81532728 can be written as Eighty-one million, five hundred thirty-two thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 8.1532728 × 10⁷

Factors of 81532728

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 36565

Divisors of 81532728

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 6 8 9 12 18 24 31 36 62 72 93 124 186 248 279 372 558 744 1116 2232 36529 73058 109587 146116 219174 292232 328761 438348 657522 876696 1132399 1315044 2264798 2630088 3397197 4529596 6794394 9059192 10191591 13588788 20383182 27177576 40766364 81532728
Sum of all divisors σ(n): 227947200
Sum of proper divisors (its aliquot sum) s(n): 146414472
81532728 is an abundant number, because the sum of its proper divisors (146414472) is greater than itself. Its abundance is 64881744

Bases of 81532728

Binary: 100110111000001011100111000₂
Hexadecimal: 0x4DC1738
Base-36: 1CJJ20

Squares and roots of 81532728

81532728 squared (81532728²) is 6647585735121984
81532728 cubed (81532728³) is 541995799598380768292352
The square root of 81532728 is 9029.5474969679
The cube root of 81532728 is 433.6213506689

Scales and comparisons

How big is 81532728?

81,532,728 seconds is equal to 2 years, 30 weeks, 5 days, 15 hours, 58 minutes, 48 seconds.
To count from 1 to 81,532,728 would take you about three years!

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 81532728 cubic inches would be around 36.1 feet tall.

Recreational maths with 81532728

81532728 backwards is 82723518
81532728 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 81532728's digits is 36
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/81532728/?utm_source=shared">Number 81532728 - 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/81532728/?utm_source=shared]Number 81532728 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 81532728 - Facts about the integer". Numbermatics.com. 2024. Web. 2 May 2024.

APA style:
Numbermatics. (2024). Number 81532728 - Facts about the integer. Retrieved 2 May 2024, from https://numbermatics.com/n/81532728/

Chicago style:
Numbermatics. 2024. "Number 81532728 - Facts about the integer". https://numbermatics.com/n/81532728/

The information we have on file for 81532728 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 81532728, math, Factors of 81532728, curriculum, school, college, exams, university, Prime factorization of 81532728, STEM, science, technology, engineering, physics, economics, calculator, eighty-one million, five hundred thirty-two thousand, seven hundred twenty-eight.