18212819191812

Names of 18212819191812

• Cardinal: 18212819191812 can be written as Eighteen trillion, two hundred twelve billion, eight hundred nineteen million, one hundred ninety-one thousand, eight hundred twelve.

Scientific notation

• Scientific notation: 1.8212819191812 × 10¹³

Factors of 18212819191812

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 309

Divisors of 18212819191812

• Number of divisors d(n): 810
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 19 21 27 28 36 38 42 49 54 57 63 76 81 84 97 98 108 114 126 133 147 162 171 181 189 194 196 228 252 266 291 294 324 342 361 362 378 388 399 441 513 532 543 567 582 588 679 684 722 724 756 798 873 882 931 1026 1083 1086 1134 1164 1197 1267 1323 1358 1444 1539 1596 1629 1746 1764 1843 1862 2037 2052 2166 2172 2268 2394 2527 2534 2619 2646 2716 2793 3078 3249 3258 3439 3492 3591 3686 3724 3801 3969 4074 4332 4753 4788 4887 5054 5068 5238 5292 5529 5586 6111 6156 6498 6516 6878 7182 7372 7581 7602 7857 7938 8148 8379 8869 9506 9747 9774 10108 10317 10476 10773 11058 11172 11403 12222 12901 12996 13756 14259 14364 14661 15162 15204 15714 15876 16587 16758 17557 17689 17738 18333 19012 19494 19548 20634 21546 22116 22743 22806 24073 24444 25137 25802 26607 28518 29241 29322 30324 30951 31428 32761 33174 33516 34209 35017 35114 35378 35476 36666 38703 38988 41268 42777 43092 45486 45612 48146 49761 50274 51604 52671 53067 53214 54999 57036 58482 58644 61902 65341 65522 66348 68229 68418 70034 70228 70756 72219 73332 75411 77406 79821 85554 90307 90972 92853 96292 98283 99522 100548 102627 105051 105342 106134 106428 109998 116109 116964 122899 123804 128331 130682 131044 136458 136836 140068 144438 149283 150822 154812 158013 159201 159642 168511 171108 180614 185706 196023 196566 199044 204687 205254 210102 210684 212268 216657 219996 229327 232218 239463 245119 245798 256662 261364 270921 272916 278559 288876 294849 298566 301644 315153 316026 318402 319284 333583 337022 348327 361228 368697 371412 384993 392046 393132 409374 410508 420204 433314 457387 458654 464436 474039 477603 478926 490238 491596 505533 513324 541842 557118 588069 589698 597132 622459 630306 632052 636804 649971 667166 674044 687981 696654 718389 735357 737394 769986 784092 812763 818748 860293 866628 884547 914774 917308 945459 948078 955206 957852 980476 1000749 1011066 1044981 1083684 1106091 1114236 1176138 1179396 1244918 1260612 1299942 1334332 1372161 1375962 1393308 1422117 1432809 1436778 1470714 1474788 1516599 1539972 1605289 1625526 1715833 1720586 1764207 1769094 1829548 1867377 1890918 1896156 1910412 1949913 2001498 2022132 2063943 2089962 2206071 2212182 2335081 2352276 2438289 2489836 2580879 2599884 2653641 2744322 2751924 2836377 2844234 2865618 2873556 2941428 3002247 3033198 3177817 3201709 3210578 3251052 3318273 3431666 3441172 3528414 3538188 3734754 3781836 3899826 4002996 4116483 4127886 4179924 4357213 4412142 4424364 4549797 4670162 4815867 4876578 5147499 5161758 5292621 5307282 5488644 5602131 5672754 5688468 5731236 6004494 6066396 6191829 6338077 6355634 6403418 6421156 6618213 6636546 6863332 7005243 7056828 7314867 7469508 7742637 7799652 8232966 8255772 8714426 8824284 9006741 9099594 9340324 9533451 9605127 9631734 9753156 9954819 10294998 10323516 10585242 10614564 11204262 11345508 11826721 12008988 12349449 12383658 12676154 12711268 12806836 13071639 13236426 13273092 13649391 14010486 14447601 14629734 15442497 15485274 16345567 16465932 16806393 17428852 18013482 18199188 18575487 19014231 19066902 19210254 19263468 19854639 19909638 20589996 21015729 21170484 22244719 22408524 23227911 23653442 24698898 24767316 25352308 26143278 26472852 27020223 27298782 28020972 28600353 28815381 28895202 29259468 30500491 30884994 30970548 32691134 33612786 35480163 36026964 37048347 37150974 38028462 38133804 38420508 39214917 39709278 39819276 42031458 43342803 44366539 44489438 46327491 46455822 47306884 49036701 49397796 50419179 52286556 54040446 54597564 57042693 57200706 57630762 57790404 60378523 61000982 61769988 63047187 65382268 66734157 67225572 69683733 70960326 74096694 74301948 76056924 78429834 79418556 82787047 84062916 85801059 86446143 86685606 88733078 88978876 91501473 92654982 92911644 98073402 100838358 106440489 108080892 114085386 114401412 115261524 117644751 120757046 122001964 126094374 130028409 133099617 133468314 138982473 139367466 141920652 147110103 148193388 155713033 156859668 165574094 171128079 171602118 172892286 173371212 177466156 181135569 183002946 185309964 189141561 196146804 200202471 201676716 212880978 228170772 235289502 241514092 248361141 252188748 257403177 259338429 260056818 266199234 266936628 274504419 277964946 278734932 294220206 310565773 311426066 319321467 331148188 342256158 343204236 345784572 352934253 362271138 366005892 378283122 399298851 400404942 422649661 425761956 441330309 467139099 470579004 496722282 513384237 514806354 518676858 520113636 532398468 543406707 549008838 555929892 579509329 588440412 600607413 621131546 622852132 638642934 684512316 705868506 724542276 745083423 756566244 798597702 800809884 823513257 845299322 882660618 931697319 934278198 957964401 993444564 1026768474 1029612708 1037353716 1086813414 1098017676 1147191937 1159018658 1197896553 1201214826 1242263092 1267948983 1277285868 1323990927 1401417297 1411737012 1490166846 1597195404 1630220121 1647026514 1690598644 1738527987 1765321236 1801822239 1863394638 1868556396 1915928802 2053536948 2173626828 2235250269 2294383874 2318037316 2395793106 2402429652 2470539771 2535897966 2647981854 2795091957 2802834594 2958547627 2980333692 3260440242 3294053028 3441575811 3477055974 3593689659 3603644478 3726789276 3803846949 3831857604 4204251891 4470500538 4588767748 4791586212 4890660363 4941079542 5071795932 5215583961 5295963708 5590183914 5605669188 5917095254 6520880484 6705750807 6883151622 6954111948 7187379318 7207288956 7607693898 8030343559 8385275871 8408503782 8875642881 8941001076 9781320726 9882159084 10324727433 10431167922 11180367828 11411540847 11834190508 12612755673 13411501614 13766303244 14374758636 15215387796 15646751883 16060687118 16770551742 16817007564 17751285762 19562641452 20649454866 20862335844 22823081694 24091030677 25155827613 25225511346 26626928643 26823003228 30974182299 31293503766 32121374236 33541103484 34234622541 35502571524 41298909732 45646163388 46940255649 48182061354 50311655226 50451022692 53253857286 56212404913 61948364598 62587007532 68469245082 72273092031 79880785929 92922546897 93880511298 96364122708 100623310452 106507714572 112424809826 123896729196 136938490164 144546184062 159761571858 168637214739 185845093794 187761022596 216819276093 224849619652 239642357787 289092368124 319523143716 337274429478 371690187588 433638552186 479284715574 505911644217 650457828279 674548858956 867277104372 958569431148 1011823288434 1300915656558 1517734932651 2023646576868 2601831313116 3035469865302 4553204797953 6070939730604 9106409595906 18212819191812
• Sum of all divisors σ(n): 59384412411786
• Sum of proper divisors (its aliquot sum) s(n): 41171593219974
• 18212819191812 is an abundant number, because the sum of its proper divisors (41171593219974) is greater than itself. Its abundance is 22958774028162

Bases of 18212819191812

• Binary: 100001001000010000000100111100100100000000100₂
• Hexadecimal: 0x1090809E4804
• Base-36: 6GEUQB090

Squares and roots of 18212819191812

• 18212819191812 squared (18212819191812²) is 331706782913635512847843344
• 18212819191812 cubed (18212819191812³) is 6041315661903677671700200354997263499328
• The square root of 18212819191812 is 4267647.9695274775
• The cube root of 18212819191812 is 26310.2954732013

Scales and comparisons

• 18,212,819,191,812 seconds is equal to 579,111 years, 16 weeks, 2 days, 10 hours, 10 minutes, 12 seconds.
• To count from 1 to 18,212,819,191,812 would take you about one million, four hundred forty-seven thousand, seven hundred seventy-eight 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 18212819191812 cubic inches would be around 2192.5 feet tall.

Recreational maths with 18212819191812

• 18212819191812 backwards is 21819191821281
• 18212819191812 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18212819191812's digits is 54
• More coming soon!