128438740

128,438,740 is an even composite number composed of four prime numbers multiplied together.

What does the number 128438740 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

128438740 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 128438740:

2² × 5 × 17 × 377761

(2 × 2 × 5 × 17 × 377761)

See below for interesting mathematical facts about the number 128438740 from the Numbermatics database.

Names of 128438740

Cardinal: 128438740 can be written as One hundred twenty-eight million, four hundred thirty-eight thousand, seven hundred forty.

Scientific notation

Scientific notation: 1.2843874 × 10⁸

Factors of 128438740

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 377785

Divisors of 128438740

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 5 10 17 20 34 68 85 170 340 377761 755522 1511044 1888805 3777610 6421937 7555220 12843874 25687748 32109685 64219370 128438740
Sum of all divisors σ(n): 285588072
Sum of proper divisors (its aliquot sum) s(n): 157149332
128438740 is an abundant number, because the sum of its proper divisors (157149332) is greater than itself. Its abundance is 28710592

Bases of 128438740

Binary: 111101001111101000111010100₂
Hexadecimal: 0x7A7D1D4
Base-36: 24GVYS

Squares and roots of 128438740

128438740 squared (128438740²) is 16496509932787600
128438740 cubed (128438740³) is 2118790950164724031624000
The square root of 128438740 is 11333.0816638723
The cube root of 128438740 is 504.5435734829

Scales and comparisons

How big is 128438740?

128,438,740 seconds is equal to 4 years, 4 weeks, 2 days, 13 hours, 25 minutes, 40 seconds.
To count from 1 to 128,438,740 would take you about six 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 128438740 cubic inches would be around 42 feet tall.

Recreational maths with 128438740

128438740 backwards is 047834821
The number of decimal digits it has is: 9
The sum of 128438740's digits is 37
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/128438740/?utm_source=shared">Number 128438740 - 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/128438740/?utm_source=shared]Number 128438740 - Facts about the integer[/url]

Cite this page

MLA style:
"Number 128438740 - Facts about the integer". Numbermatics.com. 2024. Web. 3 May 2024.

APA style:
Numbermatics. (2024). Number 128438740 - Facts about the integer. Retrieved 3 May 2024, from https://numbermatics.com/n/128438740/

Chicago style:
Numbermatics. 2024. "Number 128438740 - Facts about the integer". https://numbermatics.com/n/128438740/

The information we have on file for 128438740 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 128438740, math, Factors of 128438740, curriculum, school, college, exams, university, Prime factorization of 128438740, STEM, science, technology, engineering, physics, economics, calculator, one hundred twenty-eight million, four hundred thirty-eight thousand, seven hundred forty.