21171216
21,171,216 is an even composite number composed of five prime numbers multiplied together.
What does the number 21171216 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 80 divisors.
21171216 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 21171216:
24 × 3 × 11 × 101 × 397
(2 × 2 × 2 × 2 × 3 × 11 × 101 × 397)See below for interesting mathematical facts about the number 21171216 from the Numbermatics database.
Names of 21171216
- Cardinal: 21171216 can be written as Twenty-one million, one hundred seventy-one thousand, two hundred sixteen.
Scientific notation
- Scientific notation: 2.1171216 × 107
Factors of 21171216
Divisors of 21171216
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 101 132 176 202 264 303 397 404 528 606 794 808 1111 1191 1212 1588 1616 2222 2382 2424 3176 3333 4367 4444 4764 4848 6352 6666 8734 8888 9528 13101 13332 17468 17776 19056 26202 26664 34936 40097 52404 53328 69872 80194 104808 120291 160388 209616 240582 320776 441067 481164 641552 882134 962328 1323201 1764268 1924656 2646402 3528536 5292804 7057072 10585608 21171216
- Sum of all divisors σ(n): 60406848
- Sum of proper divisors (its aliquot sum) s(n): 39235632
- 21171216 is an abundant number, because the sum of its proper divisors (39235632) is greater than itself. Its abundance is 18064416
Bases of 21171216
- Binary: 10100001100001100000100002
- Hexadecimal: 0x1430C10
- Base-36: CLRTC
Squares and roots of 21171216
- 21171216 squared (211712162) is 448220386918656
- 21171216 cubed (211712163) is 9489370627058440605696
-
The
square root of 21171216 is 4601.2189689255 -
The
cube root of 21171216 is 276.6401858495
Scales and comparisons
How big is 21171216?- 21,171,216 seconds is equal to 35 weeks, 53 minutes, 36 seconds.
-
To count from 1 to 21,171,216 would take you about three days!
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 21171216 cubic inches would be around 23.1 feet tall.
Recreational maths with 21171216
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The information we have on file for 21171216 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!
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