21085680
21,085,680 is an even composite number composed of six prime numbers multiplied together.
21085680 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21085680:
24 × 3 × 5 × 72 × 11 × 163
(2 × 2 × 2 × 2 × 3 × 5 × 7 × 7 × 11 × 163)See below for interesting mathematical facts about the number 21085680 from the Numbermatics database.
Names of 21085680
- Cardinal: 21085680 can be written as Twenty-one million, eighty-five thousand, six hundred eighty.
Scientific notation
- Scientific notation: 2.108568 × 107
Factors of 21085680
Divisors of 21085680
- Number of divisors d(n): 240
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 33 35 40 42 44 48 49 55 56 60 66 70 77 80 84 88 98 105 110 112 120 132 140 147 154 163 165 168 176 196 210 220 231 240 245 264 280 294 308 326 330 336 385 392 420 440 462 489 490 528 539 560 588 616 652 660 735 770 784 815 840 880 924 978 980 1078 1141 1155 1176 1232 1304 1320 1470 1540 1617 1630 1680 1793 1848 1956 1960 2156 2282 2310 2352 2445 2608 2640 2695 2940 3080 3234 3260 3423 3586 3696 3912 3920 4312 4564 4620 4890 5379 5390 5705 5880 6160 6468 6520 6846 7172 7824 7987 8085 8624 8965 9128 9240 9780 10758 10780 11410 11760 12551 12936 13040 13692 14344 15974 16170 17115 17930 18256 18480 19560 21516 21560 22820 23961 25102 25872 26895 27384 28688 31948 32340 34230 35860 37653 39120 39935 43032 43120 45640 47922 50204 53790 54768 62755 63896 64680 68460 71720 75306 79870 86064 87857 91280 95844 100408 107580 119805 125510 127792 129360 136920 143440 150612 159740 175714 188265 191688 200816 215160 239610 251020 263571 273840 301224 319480 351428 376530 383376 430320 439285 479220 502040 527142 602448 638960 702856 753060 878570 958440 1004080 1054284 1317855 1405712 1506120 1757140 1916880 2108568 2635710 3012240 3514280 4217136 5271420 7028560 10542840 21085680
- Sum of all divisors σ(n): 83458944
- Sum of proper divisors (its aliquot sum) s(n): 62373264
- 21085680 is an abundant number, because the sum of its proper divisors (62373264) is greater than itself. Its abundance is 41287584
Bases of 21085680
- Binary: 10100000110111101111100002
- Hexadecimal: 0x141BDF0
- Base-36: CJXTC
Squares and roots of 21085680
- 21085680 squared (210856802) is 444605901062400
- 21085680 cubed (210856803) is 9374817755913426432000
-
The
square root of 21085680 is 4591.9146333529 -
The
cube root of 21085680 is 276.2671221891
Scales and comparisons
How big is 21085680?- 21,085,680 seconds is equal to 34 weeks, 6 days, 1 hour, 8 minutes.
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To count from 1 to 21,085,680 would take you about two 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 21085680 cubic inches would be around 23 feet tall.
Recreational maths with 21085680
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The information we have on file for 21085680 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!
Keywords: Divisors of 21085680, math, Factors of 21085680, curriculum, school, college, exams, university, Prime factorization of 21085680, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, eighty-five thousand, six hundred eighty.