18687831922117368

Names of 18687831922117368

• Cardinal: 18687831922117368 can be written as Eighteen quadrillion, six hundred eighty-seven trillion, eight hundred thirty-one billion, nine hundred twenty-two million, one hundred seventeen thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8687831922117368 × 10¹⁶

Factors of 18687831922117368

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 12094

Divisors of 18687831922117368

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 19 24 27 29 36 38 54 57 58 72 76 81 87 108 114 116 152 162 171 174 216 228 232 261 324 342 348 361 456 513 522 551 648 684 696 722 783 1026 1044 1083 1102 1368 1444 1539 1566 1653 2052 2088 2166 2204 2349 2888 3078 3132 3249 3306 4104 4332 4408 4698 4959 6156 6264 6498 6612 6859 8664 9396 9747 9918 10469 12041 12312 12996 13224 13718 14877 18792 19494 19836 20577 20938 24082 25992 27436 29241 29754 31407 36123 38988 39672 41154 41876 44631 48164 54872 58482 59508 61731 62814 72246 77976 82308 83752 89262 94221 96328 108369 116964 119016 123462 125628 144492 164616 178524 185193 188442 198911 216738 228779 233928 246924 251256 282663 288984 325107 349189 357048 370386 376884 397822 433476 457558 493848 555579 565326 596733 650214 686337 698378 740772 753768 795644 847989 866952 915116 975321 1047567 1111158 1130652 1193466 1300428 1372674 1396756 1481544 1591288 1695978 1790199 1830232 1950642 2059011 2095134 2222316 2261304 2386932 2600856 2745348 2793512 3142701 3391956 3580398 3901284 4118022 4190268 4346801 4444632 4773864 5370597 5490696 6177033 6285402 6634591 6783912 7160796 7802568 8236044 8380536 8693602 9428103 10741194 12354066 12570804 13040403 13269182 14321592 16111791 16472088 17387204 18531099 18856206 19903773 21482388 24708132 25141608 26080806 26538364 28284309 32223582 34774408 37062198 37712412 39121209 39807546 42964776 49416264 52161612 53076728 56568618 59711319 64447164 74124396 75424824 78242418 79615092 82589219 104323224 113137236 117363627 119422638 126057229 128894328 144985681 148248792 156484836 159230184 165178438 179133957 226274472 234727254 238845276 247767657 252114458 289971362 312969672 330356876 352090881 358267914 378171687 434957043 469454508 477690552 495535314 504228916 537401871 579942724 660713752 704181762 716535828 743302971 756343374 869914086 938909016 991070628 1008457832 1074803742 1134515061 1159885448 1304871129 1408363524 1433071656 1486605942 1512686748 1739828172 1982141256 2149607484 2229908913 2269030122 2395087351 2609742258 2754727939 2816727048 2973211884 3025373496 3403545183 3479656344 3914613387 4204584749 4299214968 4459817826 4538060244 4790174702 5219484516 5509455878 5946423768 6689726739 6807090366 7185262053 7829226774 8264183817 8409169498 8919635652 9076120488 9580349404 10210635549 10438969032 11018911756 11743840161 12613754247 13379453478 13614180732 14370524106 15658453548 16528367634 16818338996 17839271304 19160698808 20421271098 21555786159 22037823512 23487680322 24792551451 25227508494 26758906956 27228361464 28741048212 31316907096 33056735268 33636677992 37841262741 40842542196 43111572318 46975360644 49585102902 50455016988 52339830841 53517813912 57482096424 64667358477 66113470536 74377654353 75682525482 79887110231 81685084392 86223144636 93950721288 99170205804 100910033976 104679661682 113523788223 129334716954 148755308706 151365050964 157019492523 159774220462 172446289272 194002075431 198340411608 209359323364 223132963059 227047576446 239661330693 258669433908 297510617412 302730101928 314038985046 319548440924 340571364669 388004150862 418718646728 446265926118 454095152892 471058477569 479322661386 517338867816 595021234824 628077970092 639096881848 681142729338 718983992079 776008301724 892531852236 908190305784 942116955138 958645322772 994456785979 1256155940184 1362285458676 1413175432707 1437967984158 1517855094389 1552016603448 1785063704472 1884233910276 1917290645544 1988913571958 2156951976237 2724570917352 2826350865414 2875935968316 2983370357937 3035710188778 3768467820552 3977827143916 4239526298121 4313903952474 4553565283167 5652701730828 5751871936632 5966740715874 6071420377556 6470855928711 7955654287832 8479052596242 8627807904948 8950111073811 9107130566334 11305403461656 11933481431748 12142840755112 12941711857422 13660695849501 16958105192484 17255615809896 17900222147622 18214261132668 23866962863496 25883423714844 26850333221433 27321391699002 28839246793391 33916210384968 35800444295244 36428522265336 40982087548503 51766847429688 53700666442866 54642783398004 57678493586782 71600888590488 80550999664299 81964175097006 86517740380173 107401332885732 109285566796008 115356987173564 122946262645509 161101999328598 163928350194012 173035480760346 214802665771464 230713974347128 245892525291018 259553221140519 322203998657196 327856700388024 346070961520692 491785050582036 519106442281038 644407997314392 692141923041384 778659663421557 983570101164072 1038212884562076 1557319326843114 2076425769124152 2335978990264671 3114638653686228 4671957980529342 6229277307372456 9343915961058684 18687831922117368
• Sum of all divisors σ(n): 57160712365614000
• Sum of proper divisors (its aliquot sum) s(n): 38472880443496632
• 18687831922117368 is an abundant number, because the sum of its proper divisors (38472880443496632) is greater than itself. Its abundance is 19785048521379264

Bases of 18687831922117368

• Binary: 1000010011001000111101111101111010101110000101011111000₂
• Hexadecimal: 0x42647BEF570AF8
• Base-36: 540A7GSWNI0

Squares and roots of 18687831922117368

• 18687831922117368 squared (18687831922117368²) is 349235061949308920998056367247424
• 18687831922117368 cubed (18687831922117368³) is 6526446139018931820417720369241465379180023660032
• The square root of 18687831922117368 is 136703445.1728169433
• The cube root of 18687831922117368 is 265370.7018979817

Scales and comparisons

• 18,687,831,922,117,368 seconds is equal to 594,215,249 years, 44 weeks, 6 days, 10 hours, 22 minutes, 48 seconds.
• To count from 1 to 18,687,831,922,117,368 would take you about one billion, seven hundred eighty-two million, six hundred forty-five thousand, seven hundred forty-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 18687831922117368 cubic inches would be around 22114.2 feet tall.

Recreational maths with 18687831922117368

• 18687831922117368 backwards is 86371122913878681
• 18687831922117368 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18687831922117368's digits is 81
• More coming soon!