28909680
28,909,680 is an even composite number composed of five prime numbers multiplied together.
28909680 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 28909680:
24 × 3 × 5 × 163 × 739
(2 × 2 × 2 × 2 × 3 × 5 × 163 × 739)See below for interesting mathematical facts about the number 28909680 from the Numbermatics database.
Names of 28909680
- Cardinal: 28909680 can be written as Twenty-eight million, nine hundred nine thousand, six hundred eighty.
Scientific notation
- Scientific notation: 2.890968 × 107
Factors of 28909680
Divisors of 28909680
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 163 240 326 489 652 739 815 978 1304 1478 1630 1956 2217 2445 2608 2956 3260 3695 3912 4434 4890 5912 6520 7390 7824 8868 9780 11085 11824 13040 14780 17736 19560 22170 29560 35472 39120 44340 59120 88680 120457 177360 240914 361371 481828 602285 722742 963656 1204570 1445484 1806855 1927312 2409140 2890968 3613710 4818280 5781936 7227420 9636560 14454840 28909680
- Sum of all divisors σ(n): 90291840
- Sum of proper divisors (its aliquot sum) s(n): 61382160
- 28909680 is an abundant number, because the sum of its proper divisors (61382160) is greater than itself. Its abundance is 32472480
Bases of 28909680
- Binary: 11011100100100000011100002
- Hexadecimal: 0x1B92070
- Base-36: H7MUO
Squares and roots of 28909680
- 28909680 squared (289096802) is 835769597702400
- 28909680 cubed (289096803) is 24161831623305119232000
-
The
square root of 28909680 is 5376.7722659603 -
The
cube root of 28909680 is 306.9123949405
Scales and comparisons
How big is 28909680?- 28,909,680 seconds is equal to 47 weeks, 5 days, 14 hours, 28 minutes.
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To count from 1 to 28,909,680 would take you about nineteen 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 28909680 cubic inches would be around 25.6 feet tall.
Recreational maths with 28909680
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The information we have on file for 28909680 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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