18679921099938

Names of 18679921099938

• Cardinal: 18679921099938 can be written as Eighteen trillion, six hundred seventy-nine billion, nine hundred twenty-one million, ninety-nine thousand, nine hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8679921099938 × 10¹³

Factors of 18679921099938

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1264

Divisors of 18679921099938

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 6 7 9 14 18 19 21 23 31 38 42 43 46 57 62 63 69 86 93 114 126 129 133 138 161 171 186 207 217 258 266 279 301 307 322 342 387 399 414 434 437 483 558 589 602 614 651 713 774 798 817 829 874 903 921 966 989 1178 1197 1302 1311 1333 1426 1449 1634 1658 1767 1806 1842 1953 1978 2139 2149 2394 2451 2487 2622 2666 2709 2763 2898 2967 3059 3534 3906 3933 3999 4123 4278 4298 4902 4974 4991 5301 5418 5526 5719 5803 5833 5934 6118 6417 6447 6923 7061 7353 7461 7866 7998 8246 8901 9177 9331 9517 9982 10602 11438 11606 11666 11997 12369 12834 12894 13201 13547 13846 14122 14706 14922 14973 15751 17157 17409 17499 17802 18354 18662 18791 19034 19067 19341 20769 21183 23994 24738 25327 25699 26402 27094 27531 27993 28551 29946 30659 31502 34314 34818 34998 35647 37107 37582 38134 38682 39603 40641 40831 41538 42366 44919 47253 49427 50654 51398 51471 52227 52497 55062 55986 56373 57102 57201 61318 62307 63549 66619 71294 74214 75981 77097 79206 81282 81662 83979 85653 89838 91977 92407 94506 94829 98854 102942 104454 104994 106941 110257 112746 114402 118809 121923 122493 124614 127098 131537 133238 133469 134159 141759 148281 151962 154194 167958 169119 171306 171603 177289 179893 180823 183954 184814 189658 199857 213882 214613 218891 220514 227943 231291 237618 243846 244986 249529 250819 254503 263074 266938 268318 275931 277221 283518 284487 296562 303623 320823 330771 338238 343206 354578 359786 361646 362273 367479 394611 399714 400407 402477 409231 429226 437782 444843 455886 462582 488281 499058 501638 509006 531867 539679 542469 551862 554442 568974 582521 591077 599571 607246 641646 643839 656673 661542 677293 724546 734958 748587 752457 763509 789222 800814 804954 818462 819881 831663 853461 889686 910869 939113 976562 992313 1063734 1079358 1084938 1086819 1105057 1165042 1182154 1183833 1199142 1201221 1207431 1227693 1265761 1287678 1313346 1354586 1464843 1497174 1504914 1527018 1532237 1595601 1619037 1627407 1639762 1663326 1706922 1747563 1755733 1773231 1781521 1821738 1878226 1931517 1970019 1984626 2031879 2125361 2173638 2210114 2245761 2257371 2290527 2367666 2402442 2414862 2455386 2459643 2531522 2535911 2732607 2817339 2864617 2929686 3064474 3191202 3238074 3254814 3260457 3315171 3417967 3495126 3511466 3546462 3563042 3683079 3797283 3863034 3940038 4063758 4077647 4137539 4158929 4250722 4394529 4491522 4514742 4581054 4596711 4741051 4835557 4919286 5071822 5242689 5267199 5319693 5344563 5465214 5634678 5729234 5739167 5768837 5853569 6095637 6376083 6520914 6630342 6835934 7366158 7378929 7594566 7607733 7735399 7775389 7889593 8155294 8275078 8317858 8452017 8593851 8789058 9193422 9412313 9482102 9671114 9945513 10253901 10485378 10534398 10639386 10689126 10943629 11230463 11391849 11478334 11537674 11707138 12191274 12232941 12412617 12476787 12752166 13790133 14223153 14506671 14757858 15215466 15470798 15550778 15577739 15779186 15801597 16033689 16904034 17187702 17217501 17306511 17560707 18824626 19128249 19891026 20507802 20996083 21887258 22460926 22783698 22823199 23206197 23326167 23668779 24465882 24825234 24953574 25416311 25781553 27580266 28236939 28446306 29013342 29112503 30761703 31155478 31603194 32067378 32830887 33691389 33848899 34435002 34613022 35121414 36698823 37237851 37430361 38256498 40381859 40974983 41992166 42669459 43520013 45646398 46412394 46652334 46733217 47337558 50832622 51563106 51652503 51919533 52682121 54427723 55227151 56473878 58225006 61523406 62988249 65661774 65886191 67382778 67697798 69618591 69978501 71006337 73397646 74475702 74860722 76248933 76605403 78613241 80763718 81949966 84710817 85338918 87040026 87337509 93466434 98492661 101074167 101546697 103305006 103839066 105364242 108855446 109044173 110454302 111217811 121145577 122924949 125976498 131772382 139237182 139957002 140199651 142012674 146972581 149902267 152497866 153210806 157226482 163283169 165681453 169421634 174675018 177914177 178833947 181460639 188964747 196985322 197658573 202148334 203093394 207928951 218088346 222435622 228746799 229816209 235839723 242291154 245849898 251703467 262012527 280399302 293945162 299804534 304640091 326566338 327132519 331362906 333653433 339252499 355828354 357667894 362921278 363436731 368774847 377929494 395317146 415857902 440917743 449706801 457493598 459632418 471679446 482909909 489849507 497044359 503406934 524025054 533742531 536501841 544381917 592975719 609280182 623786853 654265038 667306866 678504998 689448627 707519169 726873462 737549694 755110401 778524677 881835486 899413602 965819818 979699014 981397557 994088718 1000960299 1017757497 1049315869 1067485062 1073003682 1088763834 1185951438 1247573706 1251837629 1270224473 1322753229 1349120403 1378897254 1415038338 1448729727 1455502657 1510220802 1557049354 1601227593 1609505523 1633145751 1761924269 1871360559 1962795114 2001920598 2035514994 2098631738 2265331203 2335574031 2374767493 2503675258 2540448946 2645506458 2698240806 2897459454 2911005314 3053272491 3147947607 3202455186 3219011046 3266291502 3380369363 3447752141 3523848538 3742721118 3755512887 3810673419 4346189181 4366507971 4530662406 4671148062 4749534986 4782365873 5285772807 6106544982 6295895214 6445797481 6760738726 6895504282 7006722093 7124302479 7511025774 7621346838 7802807477 8692378362 8733015942 9443842821 9564731746 10141108089 10343256423 10571545614 11266538661 11432020257 12891594962 13099523913 14013444186 14248604958 14347097619 15605614954 15857318421 18887685642 19337392443 20282216178 20686512846 21372907437 22533077322 22864040514 23408422431 24134264987 26199047826 28694195238 30423324267 31029769269 31714636842 33476561111 38674784886 42745814874 43041292857 45120582367 46816844862 48268529974 54619652339 58012177329 60846648534 62059538538 66953122222 70225267293 72402794961 86082585714 90241164734 100429683333 109239304678 116024354658 135361747101 140450534586 144805589922 148253342063 163858957017 200859366666 217208384883 270723494202 296506684126 301289049999 327717914034 406085241303 434416769766 444760026189 491576871051 602578099998 812170482606 889520052378 983153742102 1037773394441 1334280078567 2075546788882 2668560157134 3113320183323 6226640366646 9339960549969 18679921099938
• Sum of all divisors σ(n): 53904782131200
• Sum of proper divisors (its aliquot sum) s(n): 35224861031262
• 18679921099938 is an abundant number, because the sum of its proper divisors (35224861031262) is greater than itself. Its abundance is 16544939931324

Bases of 18679921099938

• Binary: 100001111110101000010000011111100010010100010₂
• Hexadecimal: 0x10FD420FC4A2
• Base-36: 6MDFQPZ8I

Squares and roots of 18679921099938

• 18679921099938 squared (18679921099938²) is 348939452299908899783603844
• 18679921099938 cubed (18679921099938³) is 6518161437617877539102932527790124961672
• The square root of 18679921099938 is 4322027.4293366071
• The cube root of 18679921099938 is 26533.3251562493

Scales and comparisons

• 18,679,921,099,938 seconds is equal to 593,963 years, 36 weeks, 6 days, 12 hours, 12 minutes, 18 seconds.
• To count from 1 to 18,679,921,099,938 would take you about one million, four hundred eighty-four thousand, nine hundred nine 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 18679921099938 cubic inches would be around 2211.1 feet tall.

Recreational maths with 18679921099938

• 18679921099938 backwards is 83999012997681
• The number of decimal digits it has is: 14
• The sum of 18679921099938's digits is 81
• More coming soon!