21918120
21,918,120 is an even composite number composed of six prime numbers multiplied together.
21918120 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 21918120:
23 × 3 × 5 × 7 × 97 × 269
(2 × 2 × 2 × 3 × 5 × 7 × 97 × 269)See below for interesting mathematical facts about the number 21918120 from the Numbermatics database.
Names of 21918120
- Cardinal: 21918120 can be written as Twenty-one million, nine hundred eighteen thousand, one hundred twenty.
Scientific notation
- Scientific notation: 2.191812 × 107
Factors of 21918120
Divisors of 21918120
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 97 105 120 140 168 194 210 269 280 291 388 420 485 538 582 679 776 807 840 970 1076 1164 1345 1358 1455 1614 1883 1940 2037 2152 2328 2690 2716 2910 3228 3395 3766 3880 4035 4074 5380 5432 5649 5820 6456 6790 7532 8070 8148 9415 10185 10760 11298 11640 13580 15064 16140 16296 18830 20370 22596 26093 27160 28245 32280 37660 40740 45192 52186 56490 75320 78279 81480 104372 112980 130465 156558 182651 208744 225960 260930 313116 365302 391395 521860 547953 626232 730604 782790 913255 1043720 1095906 1461208 1565580 1826510 2191812 2739765 3131160 3653020 4383624 5479530 7306040 10959060 21918120
- Sum of all divisors σ(n): 76204800
- Sum of proper divisors (its aliquot sum) s(n): 54286680
- 21918120 is an abundant number, because the sum of its proper divisors (54286680) is greater than itself. Its abundance is 32368560
Bases of 21918120
- Binary: 10100111001110001101010002
- Hexadecimal: 0x14E71A8
- Base-36: D1S4O
Squares and roots of 21918120
- 21918120 squared (219181202) is 480403984334400
- 21918120 cubed (219181203) is 10529552177119499328000
-
The
square root of 21918120 is 4681.6791859331 -
The
cube root of 21918120 is 279.8558782113
Scales and comparisons
How big is 21918120?- 21,918,120 seconds is equal to 36 weeks, 1 day, 16 hours, 22 minutes.
-
To count from 1 to 21,918,120 would take you about two 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 21918120 cubic inches would be around 23.3 feet tall.
Recreational maths with 21918120
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 21918120 - Facts about the integer". Numbermatics.com. 2024. Web. 15 May 2024.
APA style:
Numbermatics. (2024). Number 21918120 - Facts about the integer. Retrieved 15 May 2024, from https://numbermatics.com/n/21918120/
Chicago style:
Numbermatics. 2024. "Number 21918120 - Facts about the integer". https://numbermatics.com/n/21918120/
The information we have on file for 21918120 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 21918120, math, Factors of 21918120, curriculum, school, college, exams, university, Prime factorization of 21918120, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, nine hundred eighteen thousand, one hundred twenty.