21137987394944

Names of 21137987394944

• Cardinal: 21137987394944 can be written as Twenty-one trillion, one hundred thirty-seven billion, nine hundred eighty-seven million, three hundred ninety-four thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 2.1137987394944 × 10¹³

Factors of 21137987394944

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 122

Divisors of 21137987394944

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 7 8 14 16 17 28 32 34 43 49 53 56 64 68 86 98 106 112 119 128 136 172 196 212 224 238 272 289 301 343 344 371 392 424 448 476 544 578 602 686 688 731 742 784 833 848 896 901 952 1088 1156 1204 1372 1376 1462 1484 1568 1666 1696 1802 1849 1904 2023 2107 2176 2279 2312 2408 2597 2744 2752 2924 2968 3136 3332 3392 3604 3698 3808 4046 4214 4558 4624 4816 4913 5117 5194 5488 5504 5831 5848 5936 6272 6307 6664 6784 7208 7396 7616 8092 8428 9116 9248 9632 9826 10234 10388 10976 11662 11696 11872 12427 12614 12943 13328 14161 14416 14749 14792 15232 15317 15953 16184 16856 18179 18232 18496 19264 19652 20468 20776 21952 23324 23392 23744 24854 25228 25886 26656 28322 28832 29498 29584 30634 31433 31906 32368 33712 34391 35819 36358 36464 36992 38528 38743 39304 40936 41552 43904 44149 46648 46784 47488 49708 50456 51772 53312 56644 57664 58996 59168 61268 62866 63812 64736 67424 68782 71638 72716 72928 77486 78608 81872 83104 86989 88298 90601 93296 93568 97997 99127 99416 100912 103544 106624 107219 111671 113288 115328 117992 118336 122536 125732 127624 129472 134848 137564 143276 145432 145856 154972 157216 163744 166208 173978 176596 181202 186592 195994 198254 198832 201824 207088 211259 214438 220031 223342 226576 235984 236672 240737 245072 250733 251464 255248 258944 260389 269696 271201 275128 286552 290864 291712 309043 309944 314432 327488 332416 347956 353192 362404 373184 391988 396508 397664 403648 414176 422518 428876 440062 446684 453152 471968 481474 490144 501466 502928 510496 520778 534361 542402 550256 573104 581728 608923 618086 619888 628864 634207 654976 658631 685979 695912 706384 724808 746368 750533 781697 783976 793016 795328 807296 828352 845036 857752 880124 893368 906304 943936 962948 980288 1002932 1005856 1020992 1041556 1068722 1084804 1100512 1146208 1163456 1217846 1236172 1239776 1268414 1317262 1371958 1391824 1412768 1449616 1478813 1501066 1540217 1563394 1567952 1586032 1590656 1656704 1665949 1685159 1690072 1715504 1760248 1786736 1812608 1822723 1887872 1898407 1925896 1960576 2005864 2011712 2041984 2083112 2137444 2169608 2201024 2292416 2326912 2435692 2472344 2479552 2536828 2634524 2743916 2783648 2825536 2899232 2957626 3002132 3080434 3126788 3135904 3172064 3331898 3370318 3380144 3431008 3520496 3573472 3645446 3740527 3796814 3851792 4011728 4023424 4166224 4262461 4274888 4339216 4402048 4584832 4610417 4801853 4871384 4944688 4959104 5073656 5253731 5269048 5487832 5567296 5651072 5798464 5915252 6004264 6160868 6253576 6271808 6344128 6663796 6740636 6760288 6862016 7040992 7146944 7290892 7481054 7593628 7703584 8023456 8332448 8524922 8549776 8678432 9084137 9220834 9603706 9742768 9889376 10147312 10351691 10507462 10538096 10781519 10975664 11134592 11196727 11596928 11661643 11830504 12008528 12321736 12507152 12543616 12688256 12759061 13288849 13327592 13481272 13520576 13724032 14081984 14293888 14581784 14962108 15187256 15407168 16046912 16664896 17049844 17099552 17356864 18168274 18441668 19207412 19485536 19778752 20294624 20703382 21014924 21076192 21563038 21951328 22393454 23323286 23661008 24017056 24643472 25014304 25518122 26183689 26577698 26655184 26962544 27041152 28163968 28321133 29163568 29924216 30374512 30814336 32093824 32272919 33329792 33612971 34099688 34199104 34713728 36336548 36883336 38414824 38971072 39557504 40589248 41406764 42029848 42152384 43126076 43902656 44786908 46646572 47322016 48034112 49286944 50028608 51036244 52367378 53155396 53310368 53925088 56642266 58327136 59848432 60749024 63588959 64545838 67225942 68199376 68398208 72461837 72673096 73766672 76829648 77942144 78377089 81178496 81631501 82813528 84059696 84304768 86252152 87805312 89313427 89573816 93293144 94644032 96068224 98573888 100057216 102072488 104734756 106310792 106620736 107850176 113284532 116654272 119696864 121498048 127177918 129091676 134451884 136398752 144923674 145346192 147533344 153659296 156754178 163263002 165627056 168119392 172504304 178626854 179147632 183285823 186586288 189288064 197147776 198247931 204144976 209469512 212621584 213241472 215700352 225910433 226569064 233308544 239393728 242996096 254355836 258183352 268903768 272797504 289847348 290692384 295066688 307318592 313508356 326526004 331254112 336238784 345008608 357253708 358295264 366571646 373172576 396495862 408289952 418939024 425243168 445122713 451820866 453138128 478787456 481459261 508711672 516366704 537807536 545595008 548639623 571420507 579694696 581384768 590133376 614637184 627016712 653052008 662508224 672477568 690017216 714507416 716590528 733143292 746345152 792991724 816579904 837878048 850486336 890245426 903641732 906276256 962918522 1017423344 1032733408 1075615072 1097279246 1142841014 1159389392 1162769536 1254033424 1306104016 1325016448 1380034432 1387735517 1429014832 1433181056 1466286584 1492690304 1585983448 1633159808 1675756096 1700972672 1780490852 1807283464 1812552512 1925837044 2034846688 2065466816 2151230144 2194558492 2285682028 2318778784 2508066848 2612208032 2775471034 2858029664 2932573168 3115858991 3171966896 3351512192 3370214827 3560981704 3614566928 3625105024 3840477361 3851674088 4069693376 4130933632 4302460288 4389116984 4571364056 4637557568 5016133696 5224416064 5550942068 5716059328 5865146336 6231717982 6343933792 6740429654 7121963408 7229133856 7680954722 7703348176 8139386752 8778233968 9142728112 9275115136 9714148619 10032267392 10448832128 11101884136 11432118656 11730292672 12463435964 12687867584 13480859308 14243926816 14458267712 15361909444 15406696352 17556467936 18285456224 19428297238 22203768272 23460585344 23591503789 24926871928 25375735168 26961718616 28487853632 28916535424 30723818888 30813392704 35112935872 36570912448 38856594476 44407536544 47183007578 49853743856 53923437232 56975707264 61447637776 61626785408 70225871744 73141824896 77713188952 88815073088 94366015156 99707487712 107846874464 122895275552 155426377904 165140526523 177630146176 188732030312 199414975424 215693748928 245790551104 310852755808 330281053046 377464060624 398829950848 431387497856 491581102208 621705511616 660562106092 754928121248 1243411023232 1321124212184 1509856242496 2642248424368 3019712484992 5284496848736 10568993697472 21137987394944
• Sum of all divisors σ(n): 54427081680000
• Sum of proper divisors (its aliquot sum) s(n): 33289094285056
• 21137987394944 is an abundant number, because the sum of its proper divisors (33289094285056) is greater than itself. Its abundance is 12151106890112

Bases of 21137987394944

• Binary: 100110011100110010010001110101101110110000000₂
• Hexadecimal: 0x1339923ADD80
• Base-36: 7HQNNXF28

Squares and roots of 21137987394944

• 21137987394944 squared (21137987394944²) is 446814511108811431436763136
• 21137987394944 cubed (21137987394944³) is 9444759503696121898520112468208211984384
• The square root of 21137987394944 is 4597606.7029427385
• The cube root of 21137987394944 is 27649.5379478627

Scales and comparisons

• 21,137,987,394,944 seconds is equal to 672,122 years, 31 weeks, 6 days, 21 hours, 15 minutes, 44 seconds.
• To count from 1 to 21,137,987,394,944 would take you about one million, six hundred eighty thousand, three hundred 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 21137987394944 cubic inches would be around 2304.1 feet tall.

Recreational maths with 21137987394944

• 21137987394944 backwards is 44949378973112
• The number of decimal digits it has is: 14
• The sum of 21137987394944's digits is 71
• More coming soon!