20985560
20,985,560 is an even composite number composed of five prime numbers multiplied together.
20985560 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 20985560:
23 × 5 × 29 × 79 × 229
(2 × 2 × 2 × 5 × 29 × 79 × 229)See below for interesting mathematical facts about the number 20985560 from the Numbermatics database.
Names of 20985560
- Cardinal: 20985560 can be written as Twenty million, nine hundred eighty-five thousand, five hundred sixty.
Scientific notation
- Scientific notation: 2.098556 × 107
Factors of 20985560
Divisors of 20985560
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 4 5 8 10 20 29 40 58 79 116 145 158 229 232 290 316 395 458 580 632 790 916 1145 1160 1580 1832 2290 2291 3160 4580 4582 6641 9160 9164 11455 13282 18091 18328 22910 26564 33205 36182 45820 53128 66410 72364 90455 91640 132820 144728 180910 265640 361820 524639 723640 1049278 2098556 2623195 4197112 5246390 10492780 20985560
- Sum of all divisors σ(n): 49680000
- Sum of proper divisors (its aliquot sum) s(n): 28694440
- 20985560 is an abundant number, because the sum of its proper divisors (28694440) is greater than itself. Its abundance is 7708880
Bases of 20985560
- Binary: 10100000000110110110110002
- Hexadecimal: 0x14036D8
- Base-36: CHSK8
Squares and roots of 20985560
- 20985560 squared (209855602) is 440393728513600
- 20985560 cubed (209855603) is 9241909013345863616000
-
The
square root of 20985560 is 4580.9998908535 -
The
cube root of 20985560 is 275.8291668445
Scales and comparisons
How big is 20985560?- 20,985,560 seconds is equal to 34 weeks, 4 days, 21 hours, 19 minutes, 20 seconds.
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To count from 1 to 20,985,560 would take you about seven hours!
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 20985560 cubic inches would be around 23 feet tall.
Recreational maths with 20985560
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The information we have on file for 20985560 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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