221382720
221,382,720 is an even composite number composed of five prime numbers multiplied together.
221382720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred ninety-two divisors.
Prime factorization of 221382720:
26 × 36 × 5 × 13 × 73
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 13 × 73)See below for interesting mathematical facts about the number 221382720 from the Numbermatics database.
Names of 221382720
- Cardinal: 221382720 can be written as Two hundred twenty-one million, three hundred eighty-two thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.2138272 × 108
Factors of 221382720
Divisors of 221382720
- Number of divisors d(n): 392
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 32 36 39 40 45 48 52 54 60 64 65 72 73 78 80 81 90 96 104 108 117 120 130 135 144 146 156 160 162 180 192 195 208 216 219 234 240 243 260 270 288 292 312 320 324 351 360 365 390 405 416 432 438 468 480 486 520 540 576 584 585 624 648 657 702 720 729 730 780 810 832 864 876 936 949 960 972 1040 1053 1080 1095 1168 1170 1215 1248 1296 1314 1404 1440 1458 1460 1560 1620 1728 1752 1755 1872 1898 1944 1971 2080 2106 2160 2190 2336 2340 2430 2496 2592 2628 2808 2847 2880 2916 2920 3120 3159 3240 3285 3504 3510 3645 3744 3796 3888 3942 4160 4212 4320 4380 4672 4680 4745 4860 5184 5256 5265 5616 5694 5832 5840 5913 6240 6318 6480 6570 7008 7020 7290 7488 7592 7776 7884 8424 8541 8640 8760 9360 9477 9490 9720 9855 10512 10530 11232 11388 11664 11680 11826 12480 12636 12960 13140 14016 14040 14235 14580 15184 15552 15768 15795 16848 17082 17520 17739 18720 18954 18980 19440 19710 21024 21060 22464 22776 23328 23360 23652 25272 25623 25920 26280 28080 28470 29160 29565 30368 31536 31590 33696 34164 35040 35478 37440 37908 37960 38880 39420 42048 42120 42705 45552 46656 47304 47385 50544 51246 52560 53217 56160 56940 58320 59130 60736 63072 63180 67392 68328 70080 70956 75816 75920 76869 77760 78840 84240 85410 88695 91104 94608 94770 101088 102492 105120 106434 112320 113880 116640 118260 126144 126360 128115 136656 141912 151632 151840 153738 157680 168480 170820 177390 182208 189216 189540 202176 204984 210240 212868 227760 230607 233280 236520 252720 256230 266085 273312 283824 303264 303680 307476 315360 336960 341640 354780 378432 379080 384345 409968 425736 455520 461214 473040 505440 512460 532170 546624 567648 606528 614952 630720 683280 691821 709560 758160 768690 819936 851472 911040 922428 946080 1010880 1024920 1064340 1135296 1153035 1229904 1366560 1383642 1419120 1516320 1537380 1639872 1702944 1844856 1892160 2049840 2128680 2306070 2459808 2733120 2767284 2838240 3032640 3074760 3405888 3459105 3689712 4099680 4257360 4612140 4919616 5534568 5676480 6149520 6918210 7379424 8199360 8514720 9224280 11069136 12299040 13836420 14758848 17029440 18448560 22138272 24598080 27672840 36897120 44276544 55345680 73794240 110691360 221382720
- Sum of all divisors σ(n): 862849176
- Sum of proper divisors (its aliquot sum) s(n): 641466456
- 221382720 is an abundant number, because the sum of its proper divisors (641466456) is greater than itself. Its abundance is 420083736
Bases of 221382720
- Binary: 11010011001000001000010000002
- Hexadecimal: 0xD320840
- Base-36: 3NT000
Squares and roots of 221382720
- 221382720 squared (2213827202) is 49010308714598400
- 221382720 cubed (2213827203) is 10850035451277497499648000
-
The
square root of 221382720 is 14878.9354457905 -
The
cube root of 221382720 is 604.9431633877
Scales and comparisons
How big is 221382720?- 221,382,720 seconds is equal to 7 years, 2 weeks, 7 hours, 12 minutes.
-
To count from 1 to 221,382,720 would take you about ten years!
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 221382720 cubic inches would be around 50.4 feet tall.
Recreational maths with 221382720
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