81315221120
81,315,221,120 is an even composite number composed of six prime numbers multiplied together.
81315221120 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 81315221120:
27 × 5 × 7 × 192 × 137 × 367
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 19 × 19 × 137 × 367)See below for interesting mathematical facts about the number 81315221120 from the Numbermatics database.
Names of 81315221120
- Cardinal: 81315221120 can be written as Eighty-one billion, three hundred fifteen million, two hundred twenty-one thousand, one hundred twenty.
Scientific notation
- Scientific notation: 8.131522112 × 1010
Factors of 81315221120
Divisors of 81315221120
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 64 70 76 80 95 112 128 133 137 140 152 160 190 224 266 274 280 304 320 361 367 380 448 532 548 560 608 640 665 685 722 734 760 896 959 1064 1096 1120 1216 1330 1370 1444 1468 1520 1805 1835 1918 2128 2192 2240 2432 2527 2569 2603 2660 2740 2888 2936 3040 3610 3670 3836 4256 4384 4480 4795 5054 5138 5206 5320 5480 5776 5872 6080 6973 7220 7340 7672 8512 8768 9590 10108 10276 10412 10640 10960 11552 11744 12160 12635 12845 13015 13946 14440 14680 15344 17024 17536 18221 19180 20216 20552 20824 21280 21920 23104 23488 25270 25690 26030 27892 28880 29360 30688 34865 36442 38360 40432 41104 41648 42560 43840 46208 46976 48811 49457 50279 50540 51380 52060 55784 57760 58720 61376 69730 72884 76720 80864 82208 83296 85120 87680 91105 97622 98914 100558 101080 102760 104120 111568 115520 117440 122752 132487 139460 145768 153440 161728 164416 166592 182210 195244 197828 201116 202160 205520 208240 223136 231040 234880 244055 247285 251395 264974 278920 291536 306880 323456 328832 333184 346199 351953 364420 390488 395656 402232 404320 411040 416480 446272 488110 494570 502790 529948 557840 583072 613760 662435 692398 703906 728840 780976 791312 804464 808640 822080 832960 892544 927409 955301 976220 989140 1005580 1059896 1115680 1166144 1324870 1384796 1407812 1457680 1561952 1582624 1608928 1617280 1644160 1665920 1730995 1759765 1854818 1910602 1952440 1978280 2011160 2119792 2231360 2332288 2649740 2769592 2815624 2915360 3123904 3165248 3217856 3461990 3519530 3709636 3821204 3904880 3956560 4022320 4239584 4462720 4637045 4776505 5299480 5539184 5631248 5830720 6247808 6330496 6435712 6687107 6923980 7039060 7419272 7642408 7809760 7913120 8044640 8479168 9274090 9553010 10598960 11078368 11262496 11661440 13374214 13847960 14078120 14838544 15284816 15619520 15826240 16089280 16958336 18150719 18548180 19106020 21197920 22156736 22524992 26748428 27695920 28156240 29677088 30569632 31239040 31652480 32178560 33435535 36301438 37096360 38212040 42395840 44313472 45049984 53496856 55391840 56312480 59354176 61139264 66871070 72602876 74192720 76424080 84791680 90753595 106993712 110783680 112624960 118708352 122278528 127055033 133742140 145205752 148385440 152848160 181507190 213987424 221567360 225249920 254110066 267484280 290411504 296770880 305696320 363014380 427974848 508220132 534968560 580823008 593541760 611392640 635275165 726028760 855949696 1016440264 1069937120 1161646016 1270550330 1452057520 2032880528 2139874240 2323292032 2541100660 2904115040 4065761056 4279748480 5082201320 5808230080 8131522112 10164402640 11616460160 16263044224 20328805280 40657610560 81315221120
- Sum of all divisors σ(n): 236828136960
- Sum of proper divisors (its aliquot sum) s(n): 155512915840
- 81315221120 is an abundant number, because the sum of its proper divisors (155512915840) is greater than itself. Its abundance is 74197694720
Bases of 81315221120
- Binary: 10010111011101100001111001110100000002
- Hexadecimal: 0x12EEC3CE80
- Base-36: 11CSZE68
Squares and roots of 81315221120
- 81315221120 squared (813152211202) is 6612165185794494054400
- 81315221120 cubed (813152211203) is 537669674164845166912061308928000
-
The
square root of 81315221120 is 285158.2387377227 -
The
cube root of 81315221120 is 4332.3541313043
Scales and comparisons
How big is 81315221120?- 81,315,221,120 seconds is equal to 2,585 years, 29 weeks, 5 days, 9 hours, 25 minutes, 20 seconds.
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To count from 1 to 81,315,221,120 would take you about five thousand, one hundred seventy-one 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 81315221120 cubic inches would be around 361 feet tall.
Recreational maths with 81315221120
- 81315221120 backwards is 02112251318
- The number of decimal digits it has is: 11
- The sum of 81315221120's digits is 26
- More coming soon!
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The information we have on file for 81315221120 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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