18720912394008

Names of 18720912394008

• Cardinal: 18720912394008 can be written as Eighteen trillion, seven hundred twenty billion, nine hundred twelve million, three hundred ninety-four thousand and eight.

Scientific notation

• Scientific notation: 1.8720912394008 × 10¹³

Factors of 18720912394008

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 501

Divisors of 18720912394008

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 17 18 19 22 24 27 33 34 36 38 44 51 54 57 66 68 72 76 88 99 102 108 114 121 132 136 152 153 171 187 198 204 209 216 228 242 264 297 306 323 342 363 374 396 408 418 449 456 459 484 513 561 594 612 627 646 684 726 748 792 836 898 918 968 969 1026 1089 1122 1188 1224 1254 1292 1331 1347 1368 1452 1496 1672 1683 1796 1836 1881 1938 2052 2057 2178 2244 2299 2376 2508 2584 2662 2694 2904 2907 3267 3366 3553 3592 3672 3762 3876 3993 4041 4104 4114 4356 4488 4598 4939 5016 5049 5324 5388 5643 5814 6171 6534 6732 6897 7106 7524 7633 7752 7986 8082 8228 8531 8712 8721 9196 9878 10098 10648 10659 10776 11286 11628 11979 12123 12342 13068 13464 13794 14212 14817 15048 15266 15972 16164 16456 17062 17442 18392 18513 19756 20196 20691 21318 22572 22627 22899 23256 23958 24246 24684 25289 25593 26136 27588 28424 29634 30532 31944 31977 32328 34124 34884 35937 37026 39083 39512 40392 41382 42636 44451 45144 45254 45798 47916 48492 49368 50578 51186 54329 55176 55539 59268 61064 62073 63954 67881 68248 68697 69768 71874 74052 75867 76779 78166 82764 83963 85272 88902 90508 91596 93841 95832 95931 96984 101156 102372 108658 111078 117249 118536 124146 127908 133353 135762 137394 143748 145027 148104 151734 153558 156332 162987 165528 167926 177804 181016 183192 187682 191862 201601 202312 203643 204744 206091 217316 222156 227601 230337 234498 248292 251889 255816 266706 271524 274788 281523 287496 290054 303468 307116 312664 325974 335852 351747 355608 375364 383724 403202 407286 412182 429913 434632 435081 444312 455202 460674 468996 488961 496584 503778 533412 543048 549576 563046 580108 597619 604803 606936 610929 614232 651948 671704 682803 703494 750728 755667 767448 806404 814572 824364 844569 859826 870162 910404 921348 923593 937992 977922 1007556 1032251 1055241 1066824 1126092 1160216 1195238 1209606 1221858 1289739 1303896 1305243 1365606 1406988 1466883 1511334 1595297 1612808 1629144 1648728 1689138 1719652 1740324 1792857 1814409 1820808 1842696 1847186 1955844 2015112 2064502 2110482 2217611 2252184 2267001 2390476 2419212 2443716 2533707 2579478 2610486 2731212 2770779 2813976 2933766 3022668 3096753 3190594 3378276 3427217 3439304 3480648 3585714 3628818 3694372 3830419 3869217 3911688 3915729 4129004 4220964 4435222 4534002 4780952 4785891 4838424 4887432 5067414 5158956 5220972 5378571 5443227 5462424 5541558 5867532 6045336 6193506 6381188 6652833 6756552 6854434 7171428 7257636 7388744 7660838 7738434 7831458 8258008 8312337 8441928 8870444 9068004 9290259 9571782 10134828 10159523 10281651 10317912 10441944 10757142 10886454 11083116 11354761 11491257 11607651 11735064 12387012 12762376 13305666 13708868 14342856 14357673 14515272 15321676 15476868 15662916 16135713 16624674 17548267 17740888 18136008 18580518 19143564 19958499 20269656 20319046 20563302 21514284 21772908 22166232 22709522 22982514 23215302 24393721 24774024 24937011 26611332 27417736 27870777 28715346 30478569 30643352 30844953 30953736 31325832 32271426 33249348 34064283 34473771 35096534 37161036 37699387 38287128 39916998 40638092 41126604 42134609 43028568 43073019 43545816 45419044 45965028 46430604 48787442 49874022 52644801 53222664 55741554 57430692 59875497 60957138 61689906 64542852 65117123 66498696 68128566 68947542 70193068 73181163 74322072 75398774 79833996 81276184 82253208 84269218 86146038 90838088 91435707 91930056 92534859 92861208 97574884 99748044 102192849 103421313 105289602 111483108 113098161 114861384 119750994 121914276 123379812 126403827 129085704 130234246 136257132 137895084 140386136 146362326 150797548 157934403 159667992 168538436 172292076 182871414 185069718 193030937 195149768 195351369 199496088 204385698 206842626 210579204 219543489 222966216 226196322 239501988 243828552 246759624 252807654 260468492 268330931 272514264 274307121 275790168 292724652 301595096 306578547 315868806 337076872 339294483 344584152 365742828 370139436 379211481 386061874 390702738 408771396 413685252 414693257 421158408 439086978 452392644 463480699 473803209 479003976 505615308 520936984 536661862 548614242 579092811 585449304 586054107 613157094 631737612 658630467 678588966 716288353 731485656 740278872 758422962 772123748 781405476 804992793 817542792 827370504 829386514 878173956 904785288 926961398 947606418 1011230616 1017883449 1073323724 1097228484 1137634443 1158185622 1172108214 1226314188 1244079771 1263475224 1317260934 1357177932 1390442097 1432576706 1516845924 1544247496 1562810952 1609985586 1658773028 1737278433 1756347912 1758162321 1853922796 1895212836 2035766898 2146647448 2148865059 2194456968 2275268886 2316371244 2344216428 2414978379 2452628376 2488159542 2634521868 2714355864 2780884194 2865153412 3033691848 3219971172 3317546056 3474556866 3516324642 3707845592 3732239313 3790425672 4071533796 4171326291 4297730118 4550537772 4561625827 4632742488 4688432856 4829956758 4976319084 5098287689 5211835299 5269043736 5561768388 5730306824 6439942344 6446595177 6949113732 7032649284 7244935137 7464478626 7879171883 8143067592 8342652582 8595460236 9101075544 9123251654 9659913516 9952638168 10196575378 10423670598 11123536776 11196717939 12513978873 12893190354 13684877481 13898227464 14065298568 14489870274 14928957252 15294863067 15758343766 16685305164 17190920472 18246503308 19319827032 19339785531 20393150756 20847341196 22393435878 23637515649 25027957746 25786380708 27369754962 28979740548 29857914504 30589726134 31516687532 33370610328 36493006616 38679571062 40786301512 41054632443 41694682392 44786871756 45884589201 47275031298 50055915492 51572761416 54739509924 57959481096 61179452268 63033375064 70912546947 77359142124 82109264886 86670890713 89573743512 91769178402 94550062596 100111830984 109479019848 122358904536 123163897329 137653767603 141825093894 154718284248 164218529772 173341781426 183538356804 189100125192 212737640841 246327794658 260012672139 275307535206 283650187788 328437059544 346683562852 367076713608 425475281682 492655589316 520025344278 550615070412 567300375576 693367125704 780038016417 850950563364 985311178632 1040050688556 1101230140824 1560076032834 1701901126728 2080101377112 2340114049251 3120152065668 4680228098502 6240304131336 9360456197004 18720912394008
• Sum of all divisors σ(n): 63893375424000
• Sum of proper divisors (its aliquot sum) s(n): 45172463029992
• 18720912394008 is an abundant number, because the sum of its proper divisors (45172463029992) is greater than itself. Its abundance is 26451550635984

Bases of 18720912394008

• Binary: 100010000011011001101010101010100011100011000₂
• Hexadecimal: 0x1106CD554718
• Base-36: 6MW9NVO60

Squares and roots of 18720912394008

• 18720912394008 squared (18720912394008²) is 350472560864122345834304064
• 18720912394008 cubed (18720912394008³) is 6561166108440871154548690200868843648512
• The square root of 18720912394008 is 4326766.9678419243
• The cube root of 18720912394008 is 26552.7192555131

Scales and comparisons

• 18,720,912,394,008 seconds is equal to 595,267 years, 5 weeks, 3 days, 18 hours, 46 minutes, 48 seconds.
• To count from 1 to 18,720,912,394,008 would take you about one million, four hundred eighty-eight thousand, one hundred sixty-seven 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 18720912394008 cubic inches would be around 2212.7 feet tall.

Recreational maths with 18720912394008

• 18720912394008 backwards is 80049321902781
• 18720912394008 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18720912394008's digits is 54
• More coming soon!