20556990
20,556,990 is an even composite number composed of five prime numbers multiplied together.
20556990 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 20556990:
2 × 34 × 5 × 41 × 619
(2 × 3 × 3 × 3 × 3 × 5 × 41 × 619)See below for interesting mathematical facts about the number 20556990 from the Numbermatics database.
Names of 20556990
- Cardinal: 20556990 can be written as Twenty million, five hundred fifty-six thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.055699 × 107
Factors of 20556990
Divisors of 20556990
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 41 45 54 81 82 90 123 135 162 205 246 270 369 405 410 615 619 738 810 1107 1230 1238 1845 1857 2214 3095 3321 3690 3714 5535 5571 6190 6642 9285 11070 11142 16605 16713 18570 25379 27855 33210 33426 50139 50758 55710 76137 83565 100278 126895 152274 167130 228411 250695 253790 380685 456822 501390 685233 761370 1142055 1370466 2055699 2284110 3426165 4111398 6852330 10278495 20556990
- Sum of all divisors σ(n): 56715120
- Sum of proper divisors (its aliquot sum) s(n): 36158130
- 20556990 is an abundant number, because the sum of its proper divisors (36158130) is greater than itself. Its abundance is 15601140
Bases of 20556990
- Binary: 10011100110101100101111102
- Hexadecimal: 0x139ACBE
- Base-36: C8LVI
Squares and roots of 20556990
- 20556990 squared (205569902) is 422589837860100
- 20556990 cubed (205569903) is 8687175070991697099000
-
The
square root of 20556990 is 4533.9816938315 -
The
cube root of 20556990 is 273.9385640225
Scales and comparisons
How big is 20556990?- 20,556,990 seconds is equal to 33 weeks, 6 days, 22 hours, 16 minutes, 30 seconds.
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To count from 1 to 20,556,990 would take you about fifty 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 20556990 cubic inches would be around 22.8 feet tall.
Recreational maths with 20556990
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The information we have on file for 20556990 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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