21138809489424

Names of 21138809489424

• Cardinal: 21138809489424 can be written as Twenty-one trillion, one hundred thirty-eight billion, eight hundred nine million, four hundred eighty-nine thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.1138809489424 × 10¹³

Factors of 21138809489424

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1227

Divisors of 21138809489424

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 19 22 24 31 33 36 38 44 48 57 62 66 72 76 88 93 99 114 124 132 144 151 152 171 176 181 186 198 209 228 248 264 279 302 304 341 342 362 372 396 418 453 456 496 528 543 558 589 604 627 682 684 724 744 792 829 836 906 912 1023 1086 1116 1178 1208 1254 1359 1364 1368 1448 1488 1584 1629 1658 1661 1672 1767 1812 1881 1991 2046 2172 2232 2356 2416 2487 2508 2718 2728 2736 2869 2896 3069 3258 3316 3322 3344 3439 3534 3624 3762 3982 4092 4344 4464 4681 4712 4974 4983 5016 5301 5436 5456 5611 5738 5973 6138 6479 6516 6632 6644 6878 7068 7248 7461 7524 7964 8184 8607 8688 9119 9362 9424 9948 9966 10032 10317 10602 10872 11222 11476 11946 12276 12958 13032 13264 13288 13756 14043 14136 14922 14949 15048 15751 15928 16368 16833 17214 17919 18238 18724 19437 19896 19932 20634 21204 21744 22444 22952 23892 24552 25699 25821 25916 26064 26576 27331 27357 27512 28086 28272 29844 29898 30096 30951 31502 31559 31856 33666 34428 35838 36476 37448 37829 38874 39792 39864 41268 42129 42408 44888 45904 47253 47784 49104 50499 51398 51491 51642 51832 54662 54714 55024 56172 58311 59688 59796 61721 61902 63004 63118 67332 68856 71676 72952 74896 75658 77097 77748 79728 81993 82071 82536 84258 84816 88939 89776 94506 94677 95568 100998 102796 102982 103284 103664 106609 109324 109428 112344 113487 116622 119376 119592 123442 123804 125179 126008 126236 134664 137712 141759 143352 145904 150049 151316 154194 154473 155496 163986 164142 165072 168516 173261 177878 185163 189012 189354 201996 205592 205964 206568 213218 218648 218856 224688 226974 231291 233244 239184 245979 246884 247608 250358 252016 252472 266817 269328 282689 283518 284031 286704 300098 300641 302632 308388 308946 310992 319827 327972 328284 337032 340461 346522 355756 370326 375537 378024 378708 403992 411184 411928 413136 426436 437296 437712 450147 453948 462582 463419 466488 488281 491958 493768 495216 500716 504944 519289 519783 533634 555489 565378 567036 568062 600196 601282 605264 616776 617892 639654 655944 656568 674064 680922 693044 711512 740652 751074 756048 757416 800451 807984 823856 847261 848067 852872 900294 901923 907896 925164 926838 932976 959481 976562 978329 983916 987536 1001432 1038578 1039566 1067268 1110978 1126611 1130756 1134072 1136124 1172699 1200392 1202564 1233552 1235784 1279308 1311888 1313136 1350441 1361844 1376969 1386088 1423024 1464843 1481304 1502148 1514832 1557867 1559349 1600902 1650539 1694522 1696134 1705744 1800588 1803846 1815792 1850328 1853676 1918962 1953124 1956658 1967832 2002864 2077156 2079132 2134536 2221956 2253222 2261512 2268144 2272248 2345398 2378401 2400784 2405128 2471568 2541783 2544201 2558616 2700882 2705769 2723688 2753938 2772176 2850931 2929686 2934987 2962608 3004296 3115734 3118698 3201804 3301078 3389044 3392268 3518097 3601176 3607692 3700656 3707352 3837924 3880549 3906248 3913316 3935664 4130907 4154312 4158264 4269072 4394529 4443912 4506444 4523024 4544496 4651519 4673601 4690796 4756802 4810256 4951617 5083566 5088402 5117232 5371091 5401764 5411538 5447376 5507876 5701862 5712179 5859372 5869974 6008592 6231468 6237396 6403608 6602156 6778088 6784536 7036194 7135203 7202352 7215384 7414704 7625349 7675848 7761098 7812496 7826632 8261814 8308624 8316528 8552793 8789058 8804961 8887824 9012888 9303038 9319871 9347202 9381592 9513604 9903234 10167132 10176804 10554291 10742182 10803528 10823076 11015752 11403724 11424358 11641647 11718744 11739948 12392721 12462936 12474792 12807216 13204312 13556176 13569072 13954557 14072388 14270406 14430768 14854851 15250698 15351696 15522196 15653264 16097959 16113273 16523628 17105586 17136537 17578116 17609922 18025776 18606076 18639742 18694404 18763184 19027208 19806468 20334264 20353608 21108582 21405609 21484364 21607056 21646152 22031504 22657399 22807448 22848716 23283294 23437488 23479896 24785442 24925872 24949584 25658379 26162411 26408624 27909114 27959613 28144776 28540812 29709702 30501396 31044392 31360241 32195918 32226546 33047256 34211172 34273074 34924941 35156232 35219844 37212152 37279484 37388808 38054416 39612936 40668528 40707216 41863671 42217164 42686039 42811218 42968728 43292304 45314798 45614896 45697432 46566588 46959792 48293877 48339819 49570884 51166709 51316758 51409611 52324822 55818228 55919226 56289552 57081624 59419404 61002792 62088784 62720482 64391836 64453092 66094512 67972197 68422344 68546148 69849882 70312464 70439688 73730431 74424304 74558968 74777616 78487233 79225872 83727342 83878839 84434328 85372078 85622436 85937456 88378861 90629596 91394864 93133176 94080723 96587754 96679638 99141768 102333418 102633516 102819222 104649644 111636456 111838452 114163248 118838808 122005584 125440964 128058117 128783672 128906184 135944394 136844688 137092296 139699764 140879376 144881631 147460862 149117936 153500127 156974466 167454684 167757678 168868656 170744156 171244872 176757722 177077549 181259192 186266352 188161446 193175508 193359276 198283536 203916591 204666836 205267032 205638444 209299288 221191293 223272912 223676904 235461699 237677616 249231389 250881928 256116234 257567344 257812368 265136583 271888788 274184592 279399528 282242169 289763262 294921724 307000254 313948932 334909368 335515356 341488312 342489744 353515444 354155098 362518384 376322892 384174351 386351016 386718552 407833182 409333672 410534064 411276888 418598576 430490581 442382586 447353808 460500381 470923398 498462778 501763856 512232468 530273166 531232647 543777576 558799056 564484338 579526524 589843448 614000508 627897864 663573879 669818736 671030712 682976624 702379369 707030888 708310196 747694167 752645784 768348702 772702032 773437104 795409749 811034741 815666364 818667344 822553776 860981162 884765172 921000762 941846796 972167471 996925556 1024464936 1060546332 1062465294 1087555152 1128968676 1159053048 1179686896 1228001016 1255795728 1291471743 1327147758 1342061424 1404758738 1414061776 1416620392 1495388334 1505291568 1536697404 1590819498 1593697941 1622069482 1631332728 1721962324 1769530344 1842001524 1883693592 1944334942 1993851112 2048929872 2107138107 2121092664 2124930588 2243082501 2257937352 2318106096 2433104223 2456002032 2582943486 2654295516 2809517476 2833240784 2916502413 2990776668 3073394808 3181638996 3187395882 3244138964 3262665456 3443924648 3539060688 3684003048 3767387184 3874415229 3888669884 3987702224 4214276214 4242185328 4249861176 4486165002 4515874704 4735396391 4866208446 5165886972 5308591032 5619034952 5833004826 5981553336 6146789616 6321414321 6363277992 6374791764 6488277928 6887849296 7299312669 7368006096 7726173059 7748830458 7777339768 8428552428 8499722352 8749507239 8972330004 9470792782 9732416892 10331773944 10617182064 11238069904 11666009652 11963106672 12642828642 12726555984 12749583528 12976555856 13345208011 14206189173 14598625338 15452346118 15497660916 15554679536 16857104856 17499014478 17944660008 18941585564 19464833784 20663547888 23178519177 23332019304 25285657284 25499167056 26690416022 28412378346 29197250676 30904692236 30995321832 33714209712 34998028956 35889320016 37883171128 38929667568 40035624033 42618567519 46357038354 46664038608 50571314568 53380832044 56824756692 58394501352 61809384472 61990643664 69535557531 69996057912 75766342256 80071248066 85237135038 92714076708 101142629136 106761664088 113649513384 116789002704 120106872099 123618768944 139071115062 139992115824 146797288121 160142496132 170474270076 185428153416 213523328176 227299026768 240213744198 278142230124 293594576242 320284992264 340948540152 370856306832 440391864363 480427488396 556284460248 587189152484 640569984528 681897080304 880783728726 960854976792 1112568920496 1174378304968 1321175593089 1761567457452 1921709953584 2348756609936 2642351186178 3523134914904 5284702372356 7046269829808 10569404744712 21138809489424
• Sum of all divisors σ(n): 71065584844800
• Sum of proper divisors (its aliquot sum) s(n): 49926775355376
• 21138809489424 is an abundant number, because the sum of its proper divisors (49926775355376) is greater than itself. Its abundance is 28787965865952

Bases of 21138809489424

• Binary: 100110011100111000011001110110000100000010000₂
• Hexadecimal: 0x1339C33B0810
• Base-36: 7HR19DR80

Squares and roots of 21138809489424

• 21138809489424 squared (21138809489424²) is 446849266630162151567851776
• 21138809489424 cubed (21138809489424³) is 9445861517783826832222350102119071617024
• The square root of 21138809489424 is 4597696.1066847381
• The cube root of 21138809489424 is 27649.8963900271

Scales and comparisons

• 21,138,809,489,424 seconds is equal to 672,148 years, 39 weeks, 1 day, 20 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,138,809,489,424 would take you about one million, six hundred eighty thousand, three 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 21138809489424 cubic inches would be around 2304.2 feet tall.

Recreational maths with 21138809489424

• 21138809489424 backwards is 42498490883112
• The number of decimal digits it has is: 14
• The sum of 21138809489424's digits is 63
• More coming soon!