21491550148640

Names of 21491550148640

• Cardinal: 21491550148640 can be written as Twenty-one trillion, four hundred ninety-one billion, five hundred fifty million, one hundred forty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.149155014864 × 10¹³

Factors of 21491550148640

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 398

Divisors of 21491550148640

• Number of divisors d(n): 1536
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 26 29 32 37 40 44 52 55 58 61 65 74 80 88 104 110 113 116 122 127 130 143 145 148 160 176 185 208 220 226 232 244 254 260 286 290 296 305 319 352 370 377 407 416 440 452 464 481 488 508 520 565 572 580 592 610 635 638 671 715 740 754 793 814 880 904 928 962 976 1016 1040 1073 1130 1144 1160 1184 1220 1243 1270 1276 1342 1397 1430 1469 1480 1508 1586 1595 1628 1651 1760 1769 1808 1885 1924 1952 2032 2035 2080 2146 2257 2260 2288 2320 2405 2440 2486 2540 2552 2684 2794 2860 2938 2960 3016 3172 3190 3256 3277 3302 3355 3538 3616 3683 3770 3848 3965 4064 4070 4147 4181 4292 4514 4520 4576 4640 4699 4810 4880 4972 5080 5104 5291 5365 5368 5588 5720 5876 5920 6032 6215 6344 6380 6512 6554 6604 6710 6893 6985 7076 7345 7366 7540 7696 7747 7930 8140 8255 8294 8362 8584 8723 8845 9028 9040 9398 9620 9760 9944 10160 10208 10582 10730 10736 11176 11285 11440 11752 11803 12064 12430 12688 12760 13024 13108 13208 13420 13786 13949 13970 14152 14351 14690 14732 15080 15392 15494 15860 16159 16280 16385 16510 16588 16724 17168 17446 17690 18056 18080 18161 18415 18796 19240 19459 19888 20320 20735 20905 21164 21460 21472 22352 22570 22880 22997 23495 23504 23606 24827 24860 25376 25520 26216 26416 26455 26840 27572 27898 27940 28304 28702 29341 29380 29464 30160 30988 31720 32318 32560 32770 33020 33176 33448 34336 34465 34892 35380 36047 36112 36322 36830 37592 38480 38735 38918 39776 40513 41470 41810 42328 42601 42920 43615 44704 45140 45991 45994 46990 47008 47212 47879 49654 49720 51040 51689 52432 52832 52910 53680 54353 55144 55796 55880 56608 57404 58682 58760 58928 59015 60320 61087 61976 63440 64636 65120 65453 65540 66040 66352 66896 68930 69745 69784 70760 71755 72094 72224 72644 73660 75184 75823 76960 77470 77836 80795 81026 82940 83620 84656 85202 85217 85840 87230 89609 90280 90805 91982 91988 93980 94424 95758 97295 99308 99440 100711 103378 104864 105820 107360 108706 110288 111592 111760 114808 114985 117364 117520 117856 118030 121249 122174 123952 124135 126880 129272 130906 131080 132080 132704 133792 136271 137860 139490 139568 141520 143510 144188 145288 146705 147320 150368 151646 153439 154940 155672 157861 161590 162052 165880 167240 169312 170404 170434 171680 174460 179218 180235 180560 181610 183964 183976 186563 187960 188848 191516 194590 198616 198880 199897 201422 202565 206756 211640 213005 217412 220576 223184 223520 224663 229616 229955 229970 234728 235040 236060 239395 242498 244348 247904 248270 252967 255041 258445 258544 261812 262160 264160 271765 272542 275720 278980 279136 283040 286639 287020 288376 290576 293410 294640 303292 305435 306878 309880 311344 315722 322751 323180 324104 327265 331760 334480 340808 340868 348920 358436 360470 361120 363220 367928 367952 373126 375920 377696 379115 383032 389180 397232 399794 402844 405130 413512 416179 423280 426010 426085 434824 446368 448045 449326 459232 459910 459940 468611 469456 472120 478790 484996 488696 496540 503555 505934 510082 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41578576 42133520 42478960 42679648 43282616 43977340 44312840 44887216 45521372 45779690 45862240 46726856 46729904 46798895 47830640 47967392 48147605 49425860 50439584 50448464 50773838 51640160 51973220 53048528 53349560 53756560 54103270 55222648 56109020 56688736 56901715 57170542 57598640 58408570 58412380 59169512 59513597 59620912 59959240 61594492 63049480 63060580 64253618 64780414 65670176 66310660 66500248 66588640 68071120 69028310 69354428 70032880 70363744 70860920 72941726 73247504 73961890 74526140 74878232 74977760 75931141 76993115 77036168 77947012 78855920 79081376 81358079 81978754 82087720 83125310 83157152 84267040 84957920 86565232 86693035 87954680 88625680 89774432 91042744 91437841 91559380 93453712 93459808 93597790 95661280 96150457 96295210 97433765 98851720 100896928 101547676 103946440 106097056 106699120 107513120 108062903 108206540 110445296 112218040 113803430 114341084 115197280 116817140 116824760 118339024 119027194 119241824 119918480 123188984 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1387088560 1396280545 1425169108 1458834520 1463005456 1497564640 1518622820 1538407312 1540723360 1558940240 1601456792 1627161580 1639575080 1650149735 1684290764 1693848530 1729006448 1781461385 1820854880 1828756820 1878632006 1904435104 1923009140 2001820990 2002940368 2030953520 2105363455 2115310054 2161258060 2202003089 2234048872 2286821680 2377383866 2380543880 2429796512 2463779680 2503675460 2570144720 2591216560 2603458528 2640239576 2710157648 2774177120 2792561090 2850338216 2917669040 2926010912 3037245640 3076814624 3117880480 3202913584 3254323160 3279150160 3300299470 3368581528 3387697060 3458012896 3562922770 3630329417 3657513640 3757264012 3846018280 4003641980 4005880736 4061907040 4210726910 4230620108 4322516120 4404006178 4468097744 4573643360 4631799601 4696580015 4754767732 4761087760 5007350920 5140289440 5182433120 5280479152 5288275135 5420315296 5585122180 5700676432 5835338080 5943459665 6074491280 6405827168 6508646320 6558300320 6600598940 6737163056 6775394120 7125845540 7260658834 7315027280 7514528024 7692036560 8007283960 8421453820 8461240216 8645032240 8808012356 8936195488 9263599202 9393160030 9509535464 9522175520 10014701840 10332476033 10560958304 10576550270 11010015445 11170244360 11401352864 11886919330 12148982560 12211108039 13017292640 13201197880 13474326112 13550788240 14251691080 14521317668 14630054560 15029056048 15384073120 16014567920 16842907640 16922480432 17290064480 17616024712 18151647085 18527198404 18786320060 19019070928 20029403680 20664952066 21153100540 22020030890 22340488720 23158998005 23773838660 24422216078 26402395760 27101576480 28503382160 29042635336 30058112096 32029135840 33685815280 33844960864 35232049424 36303294170 37054396808 37572640120 38038141856 41329904132 42306201080 44040061780 44680977440 46317996010 47547677320 48844432156 51662380165 52804791520 57006764320 58085270672 61055540195 67371630560 70464098848 72606588340 74108793616 75145280240 82659808264 84612402160 88080123560 92635992020 95095354640 97688864312 103324760330 116170541344 122111080390 134322188429 145213176680 148217587232 150290560480 165319616528 169224804320 176160247120 185271984040 190190709280 195377728624 206649520660 244222160780 268644376858 290426353360 330639233056 352320494240 370543968080 390755457248 413299041320 488444321560 537288753716 580852706720 671610942145 741087936160 826598082640 976888643120 1074577507432 1343221884290 1653196165280 1953777286240 2149155014864 2686443768580 4298310029728 5372887537160 10745775074320 21491550148640
• Sum of all divisors σ(n): 65495648010240
• Sum of proper divisors (its aliquot sum) s(n): 44004097861600
• 21491550148640 is an abundant number, because the sum of its proper divisors (44004097861600) is greater than itself. Its abundance is 22512547712960

Bases of 21491550148640

• Binary: 100111000101111100100001101100101100000100000₂
• Hexadecimal: 0x138BE4365820
• Base-36: 7M92Y29SW

Squares and roots of 21491550148640

• 21491550148640 squared (21491550148640²) is 461886727791508006093849600
• 21491550148640 cubed (21491550148640³) is 9926661773322427107296023396669804544000
• The square root of 21491550148640 is 4635897.9872986851
• The cube root of 21491550148640 is 27802.8455537639

Scales and comparisons

• 21,491,550,148,640 seconds is equal to 683,364 years, 42 weeks, 3 days, 9 hours, 17 minutes, 20 seconds.
• To count from 1 to 21,491,550,148,640 would take you about one million, seven hundred eight thousand, four hundred twelve 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 21491550148640 cubic inches would be around 2316.9 feet tall.

Recreational maths with 21491550148640

• 21491550148640 backwards is 04684105519412
• The number of decimal digits it has is: 14
• The sum of 21491550148640's digits is 50
• More coming soon!