21481608720
21,481,608,720 is an even composite number composed of eight prime numbers multiplied together.
21481608720 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of six hundred forty divisors.
Prime factorization of 21481608720:
24 × 3 × 5 × 11 × 13 × 31 × 61 × 331
(2 × 2 × 2 × 2 × 3 × 5 × 11 × 13 × 31 × 61 × 331)See below for interesting mathematical facts about the number 21481608720 from the Numbermatics database.
Names of 21481608720
- Cardinal: 21481608720 can be written as Twenty-one billion, four hundred eighty-one million, six hundred eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.148160872 × 1010
Factors of 21481608720
Divisors of 21481608720
- Number of divisors d(n): 640
-
Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 13 15 16 20 22 24 26 30 31 33 39 40 44 48 52 55 60 61 62 65 66 78 80 88 93 104 110 120 122 124 130 132 143 155 156 165 176 183 186 195 208 220 240 244 248 260 264 286 305 310 312 330 331 341 366 372 390 403 429 440 465 488 496 520 528 572 610 620 624 660 662 671 682 715 732 744 780 793 806 858 880 915 930 976 993 1023 1040 1144 1209 1220 1240 1320 1324 1342 1364 1430 1464 1488 1560 1586 1612 1655 1705 1716 1830 1860 1891 1986 2013 2015 2046 2145 2288 2379 2418 2440 2480 2640 2648 2684 2728 2860 2928 3120 3172 3224 3310 3355 3410 3432 3641 3660 3720 3782 3965 3972 4026 4030 4092 4290 4303 4433 4758 4836 4880 4965 5115 5296 5368 5456 5673 5720 6045 6344 6448 6620 6710 6820 6864 7282 7320 7440 7564 7930 7944 8052 8060 8184 8580 8606 8723 8866 9455 9516 9672 9930 10065 10230 10261 10736 10923 11346 11440 11895 12090 12688 12909 13240 13299 13420 13640 14564 14640 15128 15860 15888 16104 16120 16368 17160 17212 17446 17732 18205 18910 19032 19344 19860 20130 20191 20460 20522 20801 21515 21846 22165 22692 23790 24180 24583 25818 26169 26480 26598 26840 27280 28365 29128 30256 30783 31720 32208 32240 34320 34424 34892 35464 36410 37820 38064 39720 40260 40382 40920 41044 41602 43030 43615 43692 44330 45384 47333 47580 48360 49166 51305 51636 52338 53196 53680 54615 56730 58256 60573 61566 62403 63440 64545 66495 68848 69784 70928 72820 73749 75640 79440 80520 80764 81840 82088 83204 86060 87230 87384 88660 90768 94666 95160 96720 98332 100955 102610 103272 104005 104676 106392 109230 112871 113460 121146 122915 123132 124806 129090 130845 132990 133393 139568 141999 145640 147498 151280 153915 161040 161528 164176 166408 172120 174460 174768 177320 189332 190320 196664 201910 205220 206544 208010 209352 212784 218460 222101 225742 226920 236665 242292 245830 246264 249612 258180 261690 262483 265980 266786 270413 283998 291280 294996 302865 307830 312015 323056 332816 338613 344240 348920 354640 368745 378664 393328 400179 403820 410440 416020 418704 436920 444202 451484 453840 473330 484584 491660 492528 499224 516360 523380 524966 531960 533572 540826 564355 567996 589992 605730 615660 624030 625921 666303 666965 677226 697840 709995 737490 757328 787449 800358 807640 811239 820880 832040 873840 888404 902968 946660 969168 983320 998448 1032720 1046760 1049932 1063920 1067144 1081652 1110505 1128710 1135992 1179984 1211460 1231320 1248060 1251842 1312415 1332606 1333930 1352065 1354452 1419990 1467323 1474980 1574898 1600716 1615280 1622478 1664080 1693065 1776808 1805936 1877763 1893320 1966640 2000895 2093520 2099864 2134288 2163304 2221010 2257420 2271984 2422920 2462640 2496120 2503684 2624830 2665212 2667860 2704130 2708904 2839980 2887313 2934646 2949960 3129605 3149796 3201432 3244956 3331515 3386130 3553616 3755526 3786640 3937245 4001790 4056195 4199728 4326608 4401969 4442020 4514840 4845840 4992240 5007368 5249660 5330424 5335720 5408260 5417808 5679960 5774626 5869292 5899920 6259210 6299592 6402864 6489912 6663030 6772260 6885131 7336615 7511052 7874490 8003580 8112390 8136973 8661939 8803938 8884040 9029680 9388815 10014736 10499320 10660848 10671440 10816520 11359920 11549252 11738584 12518420 12599184 12979824 13326060 13544520 13770262 14436565 14673230 15022104 15748980 16007160 16224780 16273946 17323878 17607876 17768080 18777630 20655393 20998640 21633040 22009845 23098504 23477168 24410919 25036840 26652120 27089040 27540524 28873130 29346460 30044208 31497960 32014320 32449560 32547892 34425655 34647756 35215752 37555260 40684865 41310786 43309695 44019690 46197008 48821838 50073680 53304240 55081048 57746260 58692920 62995920 64899120 65095784 68851310 69295512 70431504 75110520 81369730 82621572 86619390 88039380 89506703 97643676 103276965 110162096 115492520 117385840 122054595 130191568 137702620 138591024 150221040 162739460 165243144 173238780 176078760 179013406 195287352 206553930 230985040 244109190 268520109 275405240 325478920 330486288 346477560 352157520 358026812 390574704 413107860 447533515 488218380 537040218 550810480 650957840 692955120 716053624 826215720 895067030 976436760 1074080436 1342600545 1432107248 1652431440 1790134060 1952873520 2148160872 2685201090 3580268120 4296321744 5370402180 7160536240 10740804360 21481608720
- Sum of all divisors σ(n): 82330730496
- Sum of proper divisors (its aliquot sum) s(n): 60849121776
- 21481608720 is an abundant number, because the sum of its proper divisors (60849121776) is greater than itself. Its abundance is 39367513056
Bases of 21481608720
- Binary: 101000000000110011101010110000100002
- Hexadecimal: 0x500675610
- Base-36: 9V9LFDC
Squares and roots of 21481608720
- 21481608720 squared (214816087202) is 461459513199180038400
- 21481608720 cubed (214816087203) is 9912892702666461009743374848000
-
The
square root of 21481608720 is 146566.0558246691 -
The
cube root of 21481608720 is 2779.8557936343
Scales and comparisons
How big is 21481608720?- 21,481,608,720 seconds is equal to 683 years, 2 weeks, 3 days, 17 hours, 32 minutes.
-
To count from 1 to 21,481,608,720 would take you about one thousand, three hundred sixty-six 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 21481608720 cubic inches would be around 231.7 feet tall.
Recreational maths with 21481608720
- 21481608720 backwards is 02780618412
- 21481608720 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21481608720's digits is 39
- More coming soon!
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The information we have on file for 21481608720 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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