20955990
20,955,990 is an even composite number composed of six prime numbers multiplied together.
20955990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 20955990:
2 × 3 × 5 × 112 × 23 × 251
(2 × 3 × 5 × 11 × 11 × 23 × 251)See below for interesting mathematical facts about the number 20955990 from the Numbermatics database.
Names of 20955990
- Cardinal: 20955990 can be written as Twenty million, nine hundred fifty-five thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.095599 × 107
Factors of 20955990
Divisors of 20955990
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 5 6 10 11 15 22 23 30 33 46 55 66 69 110 115 121 138 165 230 242 251 253 330 345 363 502 506 605 690 726 753 759 1210 1255 1265 1506 1518 1815 2510 2530 2761 2783 3630 3765 3795 5522 5566 5773 7530 7590 8283 8349 11546 13805 13915 16566 16698 17319 27610 27830 28865 30371 34638 41415 41745 57730 60742 63503 82830 83490 86595 91113 127006 151855 173190 182226 190509 303710 317515 381018 455565 635030 698533 911130 952545 1397066 1905090 2095599 3492665 4191198 6985330 10477995 20955990
- Sum of all divisors σ(n): 57915648
- Sum of proper divisors (its aliquot sum) s(n): 36959658
- 20955990 is an abundant number, because the sum of its proper divisors (36959658) is greater than itself. Its abundance is 16003668
Bases of 20955990
- Binary: 10011111111000011010101102
- Hexadecimal: 0x13FC356
- Base-36: CH5QU
Squares and roots of 20955990
- 20955990 squared (209559902) is 439153516880100
- 20955990 cubed (209559903) is 9202896708204206799000
-
The
square root of 20955990 is 4577.7712917969 -
The
cube root of 20955990 is 275.6995522847
Scales and comparisons
How big is 20955990?- 20,955,990 seconds is equal to 34 weeks, 4 days, 13 hours, 6 minutes, 30 seconds.
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To count from 1 to 20,955,990 would take you about fifty-one 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 20955990 cubic inches would be around 23 feet tall.
Recreational maths with 20955990
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The information we have on file for 20955990 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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