18390580182686868

Names of 18390580182686868

• Cardinal: 18390580182686868 can be written as Eighteen quadrillion, three hundred ninety trillion, five hundred eighty billion, one hundred eighty-two million, six hundred eighty-six thousand, eight hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8390580182686868 × 10¹⁶

Factors of 18390580182686868

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 49937

Divisors of 18390580182686868

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 12 13 23 26 39 43 46 52 69 78 86 92 129 138 156 172 258 276 299 516 559 598 683 897 989 1118 1196 1366 1677 1794 1978 2049 2236 2732 2967 3354 3588 3851 3956 4098 5934 6708 7702 8196 8879 11553 11868 12857 15404 15709 17758 23106 25714 26637 29369 31418 35516 38571 45319 46212 47127 50063 51428 53274 58738 62836 77142 88107 88573 90638 94254 100126 106548 117476 135957 150189 154284 165593 176214 177146 181276 188508 200252 204217 265719 271914 300378 331186 352428 354292 381797 408434 496779 531438 543828 589147 600756 612651 662372 675487 763594 816868 993558 1042337 1062876 1145391 1151449 1178294 1225302 1350974 1527188 1767441 1948717 1987116 2026461 2084674 2152709 2290782 2302898 2356588 2450604 2630233 2701948 3127011 3454347 3534882 3808639 3897434 4052922 4169348 4305418 4581564 4605796 5260466 5846151 6254022 6458127 6908694 7069764 7617278 7794868 7890699 8105844 8610836 8781331 10520932 11425917 11692302 12508044 12916254 13550381 13817388 15234556 15781398 17562662 22851834 23384604 25333321 25832508 26343993 27100762 30952877 31562796 34193029 35125324 40651143 44820491 45703668 49512307 50666642 52687986 54201524 60495359 61905754 68386058 75999963 81302286 89640982 92858631 99024614 101333284 102579087 105375972 113100019 120990718 123811508 134461473 136772116 148536921 151999926 162604572 174523469 179281964 181486077 185717262 198049228 205158174 226200038 241981436 268922946 297073842 303999852 339300057 349046938 362972154 371434524 402387401 410316348 452400076 523570407 537845892 582666383 594147684 678600114 698093876 711916171 725944308 786439667 804774802 1047140814 1165332766 1207162203 1330973711 1357200228 1423832342 1470300247 1572879334 1609549604 1747999149 2094281628 2135748513 2268805097 2330665532 2359319001 2414324406 2601300437 2661947422 2847664684 2940600494 3145758668 3495998298 3992921133 4014039787 4271497026 4410900741 4537610194 4718638002 4828648812 5202600874 5323894844 5881200988 6806415291 6991996596 7504509167 7803901311 7985842266 8028079574 8542994052 8821801482 9075220388 9254910223 9437276004 10405201748 12042119361 13612830582 15009018334 15607802622 15971684532 16056159148 17302658243 17643602964 18509820446 22513527501 24084238722 27225661164 27764730669 30018036668 30612395353 31215605244 33816905681 34605316486 37019640892 45027055002 48168477444 51907974729 52182517231 55529461338 61224790706 67633811362 69210632972 90054110004 91837186059 97558619171 101450717043 103815949458 104365034462 111058922676 119199529327 122449581412 135267622724 156547551693 172603710841 183674372118 195117238342 202901434086 207631898916 208730068924 238399058654 292675857513 313095103386 345207421682 357598587981 367348744236 390234476684 397961139589 405802868172 476798117308 517811132523 585351715026 626190206772 690414843364 715197175962 795922279178 1035622265046 1170703430052 1193883418767 1430394351924 1549593881251 1591844558356 2071244530092 2243848240933 2387766837534 2741589174521 3099187762502 4487696481866 4648781643753 4775533675068 5125579761061 5483178349042 6198375525004 6731544722799 8224767523563 8975392963732 9297563287506 10251159522122 10966356698084 13463089445598 15376739283183 16449535047126 18595126575012 20502319044244 26926178891196 30753478566366 32899070094252 35640659268773 61506957132732 66632536893793 71281318537546 106921977806319 117888334504403 133265073787586 142562637075092 199897610681379 213843955612638 235776669008806 266530147575172 353665003513209 399795221362758 427687911225276 471553338017612 707330007026418 799590442725516 1414660014052836 1532548348557239 3065096697114478 4597645045671717 6130193394228956 9195290091343434 18390580182686868
• Sum of all divisors σ(n): 49429050335723520
• Sum of proper divisors (its aliquot sum) s(n): 31038470153036652
• 18390580182686868 is an abundant number, because the sum of its proper divisors (31038470153036652) is greater than itself. Its abundance is 12647889970349784

Bases of 18390580182686868

• Binary: 1000001010101100010001010011111000000001001110010010100₂
• Hexadecimal: 0x4156229F009C94
• Base-36: 512WZWI293O

Squares and roots of 18390580182686868

• 18390580182686868 squared (18390580182686868²) is 338213439455834955181371739649424
• 18390580182686868 cubed (18390580182686868³) is 6219941377174843179753543774767079086184688564032
• The square root of 18390580182686868 is 135611873.3101451851
• The cube root of 18390580182686868 is 263956.1651598775

Scales and comparisons

• 18,390,580,182,686,868 seconds is equal to 584,763,564 years, 3 days, 14 hours, 47 minutes, 48 seconds.
• To count from 1 to 18,390,580,182,686,868 would take you about one billion, seven hundred fifty-four million, two hundred ninety thousand, six hundred ninety-two 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 18390580182686868 cubic inches would be around 21996.3 feet tall.

Recreational maths with 18390580182686868

• 18390580182686868 backwards is 86868628108509381
• The number of decimal digits it has is: 17
• The sum of 18390580182686868's digits is 87
• More coming soon!