21122640
21,122,640 is an even composite number composed of six prime numbers multiplied together.
21122640 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21122640:
24 × 33 × 5 × 7 × 11 × 127
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 7 × 11 × 127)See below for interesting mathematical facts about the number 21122640 from the Numbermatics database.
Names of 21122640
- Cardinal: 21122640 can be written as Twenty-one million, one hundred twenty-two thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.112264 × 107
Factors of 21122640
Divisors of 21122640
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 20 21 22 24 27 28 30 33 35 36 40 42 44 45 48 54 55 56 60 63 66 70 72 77 80 84 88 90 99 105 108 110 112 120 126 127 132 135 140 144 154 165 168 176 180 189 198 210 216 220 231 240 252 254 264 270 280 297 308 315 330 336 360 378 381 385 396 420 432 440 462 495 504 508 528 540 560 594 616 630 635 660 693 720 756 762 770 792 840 880 889 924 945 990 1008 1016 1080 1143 1155 1188 1232 1260 1270 1320 1386 1397 1485 1512 1524 1540 1584 1680 1778 1848 1890 1905 1980 2032 2079 2160 2286 2310 2376 2520 2540 2640 2667 2772 2794 2970 3024 3048 3080 3429 3465 3556 3696 3780 3810 3960 4158 4191 4445 4572 4620 4752 5040 5080 5334 5544 5588 5715 5940 6096 6160 6858 6930 6985 7112 7560 7620 7920 8001 8316 8382 8890 9144 9240 9779 10160 10395 10668 11088 11176 11430 11880 12573 13335 13716 13860 13970 14224 15120 15240 16002 16632 16764 17145 17780 18288 18480 19558 20790 20955 21336 22352 22860 23760 24003 25146 26670 27432 27720 27940 29337 30480 32004 33264 33528 34290 35560 37719 39116 40005 41580 41910 42672 45720 48006 48895 50292 53340 54864 55440 55880 58674 62865 64008 67056 68580 71120 75438 78232 80010 83160 83820 88011 91440 96012 97790 100584 106680 111760 117348 120015 125730 128016 137160 146685 150876 156464 160020 166320 167640 176022 188595 192024 195580 201168 213360 234696 240030 251460 264033 274320 293370 301752 320040 335280 352044 377190 384048 391160 440055 469392 480060 502920 528066 586740 603504 640080 704088 754380 782320 880110 960120 1005840 1056132 1173480 1320165 1408176 1508760 1760220 1920240 2112264 2346960 2640330 3017520 3520440 4224528 5280660 7040880 10561320 21122640
- Sum of all divisors σ(n): 91422720
- Sum of proper divisors (its aliquot sum) s(n): 70300080
- 21122640 is an abundant number, because the sum of its proper divisors (70300080) is greater than itself. Its abundance is 49177440
Bases of 21122640
- Binary: 10100001001001110010100002
- Hexadecimal: 0x1424E50
- Base-36: CKQC0
Squares and roots of 21122640
- 21122640 squared (211226402) is 446165920569600
- 21122640 cubed (211226403) is 9424202120460255744000
-
The
square root of 21122640 is 4595.9373363875 -
The
cube root of 21122640 is 276.4284460927
Scales and comparisons
How big is 21122640?- 21,122,640 seconds is equal to 34 weeks, 6 days, 11 hours, 24 minutes.
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To count from 1 to 21,122,640 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 21122640 cubic inches would be around 23 feet tall.
Recreational maths with 21122640
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The information we have on file for 21122640 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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