21408912
21,408,912 is an even composite number composed of five prime numbers multiplied together.
21408912 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 21408912:
24 × 32 × 7 × 67 × 317
(2 × 2 × 2 × 2 × 3 × 3 × 7 × 67 × 317)See below for interesting mathematical facts about the number 21408912 from the Numbermatics database.
Names of 21408912
- Cardinal: 21408912 can be written as Twenty-one million, four hundred eight thousand, nine hundred twelve.
Scientific notation
- Scientific notation: 2.1408912 × 107
Factors of 21408912
Divisors of 21408912
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 67 72 84 112 126 134 144 168 201 252 268 317 336 402 469 504 536 603 634 804 938 951 1008 1072 1206 1268 1407 1608 1876 1902 2219 2412 2536 2814 2853 3216 3752 3804 4221 4438 4824 5072 5628 5706 6657 7504 7608 8442 8876 9648 11256 11412 13314 15216 16884 17752 19971 21239 22512 22824 26628 33768 35504 39942 42478 45648 53256 63717 67536 79884 84956 106512 127434 148673 159768 169912 191151 254868 297346 319536 339824 382302 446019 509736 594692 764604 892038 1019472 1189384 1338057 1529208 1784076 2378768 2676114 3058416 3568152 5352228 7136304 10704456 21408912
- Sum of all divisors σ(n): 69715776
- Sum of proper divisors (its aliquot sum) s(n): 48306864
- 21408912 is an abundant number, because the sum of its proper divisors (48306864) is greater than itself. Its abundance is 26897952
Bases of 21408912
- Binary: 10100011010101100100100002
- Hexadecimal: 0x146AC90
- Base-36: CQV80
Squares and roots of 21408912
- 21408912 squared (214089122) is 458341513023744
- 21408912 cubed (214089123) is 9812593118272189206528
-
The
square root of 21408912 is 4626.9765506213 -
The
cube root of 21408912 is 277.6716444787
Scales and comparisons
How big is 21408912?- 21,408,912 seconds is equal to 35 weeks, 2 days, 18 hours, 55 minutes, 12 seconds.
-
To count from 1 to 21,408,912 would take you about sixteen 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 21408912 cubic inches would be around 23.1 feet tall.
Recreational maths with 21408912
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 21408912 - Facts about the integer". Numbermatics.com. 2024. Web. 12 May 2024.
APA style:
Numbermatics. (2024). Number 21408912 - Facts about the integer. Retrieved 12 May 2024, from https://numbermatics.com/n/21408912/
Chicago style:
Numbermatics. 2024. "Number 21408912 - Facts about the integer". https://numbermatics.com/n/21408912/
The information we have on file for 21408912 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 21408912, math, Factors of 21408912, curriculum, school, college, exams, university, Prime factorization of 21408912, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, four hundred eight thousand, nine hundred twelve.