18642078618345

Names of 18642078618345

• Cardinal: 18642078618345 can be written as Eighteen trillion, six hundred forty-two billion, seventy-eight million, six hundred eighteen thousand, three hundred forty-five.

Scientific notation

• Scientific notation: 1.8642078618345 × 10¹³

Factors of 18642078618345

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 250

Divisors of 18642078618345

• Number of divisors d(n): 640
• Complete list of divisors:
  1 3 5 7 9 13 15 21 27 35 39 45 63 65 81 91 105 109 113 117 135 169 189 195 243 273 315 327 339 351 405 455 507 545 565 567 585 729 763 791 819 845 945 981 1017 1053 1183 1215 1365 1417 1469 1521 1635 1695 1701 1755 2187 2197 2289 2373 2457 2535 2835 2943 3051 3159 3549 3645 3815 3955 4095 4251 4407 4563 4905 5085 5103 5265 5915 6561 6591 6867 7085 7119 7345 7371 7605 8505 8829 9153 9477 9919 10283 10647 10935 10985 11445 11865 12285 12317 12753 13221 13689 14715 15255 15309 15379 15795 17745 18421 19097 19683 19773 20601 21255 21357 22035 22113 22815 25515 26487 27459 28431 29757 30849 31941 32805 32955 34335 35595 36855 36951 38259 39663 41067 44145 45765 45927 46137 47385 49595 51415 53235 55263 57291 59319 61585 61803 63765 64071 66105 66339 68445 76545 76895 79461 82377 85293 86219 89271 92105 92547 95485 95823 98415 98865 103005 106785 110565 110853 114777 118989 123201 128947 132435 133679 137295 137781 138411 142155 148785 154245 159705 160121 165789 171873 177957 184755 185409 191295 192213 198315 199017 205335 229635 230685 238383 239473 247131 248261 255879 258657 267813 276315 277641 286455 287469 296595 309015 320355 331695 332559 344331 356967 369603 386841 397305 401037 411885 415233 426465 431095 446355 462735 479115 480363 497367 515619 533871 554265 556227 573885 576639 594945 597051 616005 644735 668395 688905 692055 715149 718419 741393 744783 775971 800605 803439 828945 832923 859365 862407 889785 927045 961065 995085 997677 1032993 1070901 1108809 1120847 1160523 1191915 1197365 1203111 1235655 1241305 1245699 1279395 1293285 1339065 1388205 1437345 1441089 1492101 1546857 1601613 1662795 1668681 1676311 1721655 1729917 1737827 1784835 1791153 1848015 1934205 2005185 2076165 2081573 2145447 2155257 2224179 2234349 2327913 2401815 2410317 2486835 2498769 2578095 2587221 2669355 2781135 2883195 2985255 2993031 3098979 3212703 3326427 3362541 3481569 3575745 3592095 3609333 3706965 3723915 3737097 3879855 4017195 4164615 4312035 4323267 4476303 4640571 4804839 4988385 5006043 5028933 5164965 5189751 5213481 5354505 5544045 5604235 5802615 6015555 6228495 6244719 6465771 6703047 6983739 7205445 7230951 7460505 7496307 7734285 7761663 8008065 8343405 8381555 8649585 8689135 8955765 8979093 9296937 9638109 10087623 10407865 10444707 10727235 10776285 10827999 11120895 11171745 11211291 11639565 12051585 12493845 12936105 12969801 13428909 13921713 14414517 14571011 14965155 15018129 15086799 15494895 15569253 15640443 16063515 16632135 16812705 17407845 18046665 18685485 18734157 19397313 20109141 20951217 21616335 21692853 22381515 22488921 23202855 23284989 24024195 25030215 25144665 25948755 26067405 26937279 27060449 27890811 28914327 30262869 31223595 31334121 32328855 32483997 33515235 33633873 34918695 36154755 37481535 38808315 38909403 40286727 41765139 43243551 43713033 44895465 45260397 46484685 46921329 48190545 50438115 52223535 54139995 56056455 56202471 58191939 60327423 62853651 64849005 65078559 67144545 67466763 69608565 72072585 72855055 75090645 75433995 77846265 78202215 80811837 81181347 90788607 93670785 94002363 96986565 97451991 100545705 100901619 104756085 108464265 112444605 116424945 116728209 120860181 125295417 131139099 134686395 135302245 135781191 139454055 140763987 144571635 151314345 156670605 162419985 168169365 168607413 174575817 180982269 188560953 189423143 194547015 195235677 201433635 202400289 208825695 216217755 218565165 226301985 234606645 242435511 243544041 272365821 281012355 282007089 290959695 292355973 301637115 302704857 314268255 325392795 337333815 350184627 362580543 375886251 393417297 404059185 405906735 407343573 422291961 453943035 470011815 487259955 504508095 505822239 523727451 542946807 565682859 568269429 583641045 604300905 626477085 655695495 678905955 703819935 730632123 817097463 843037065 846021267 872879085 877067919 904911345 942804765 947115715 976178385 1012001445 1050553881 1180251891 1212177555 1217720205 1222030719 1266875883 1361829105 1410035445 1461779865 1513524285 1517466717 1571182353 1628840421 1697048577 1704808287 1750923135 1812902715 1879431255 1967086485 2036717865 2111459805 2191896369 2451292389 2529111195 2538063801 2618637255 2631203757 2714734035 2828414295 2841347145 3151661643 3540755673 3653160615 3666092157 3800627649 4085487315 4230106335 4385339595 4552400151 4713547059 4886521263 5114424861 5252769405 5901259455 6110153595 6334379415 6575689107 7353877167 7587333585 7855911765 8144202105 8485242885 8524041435 10622267019 10959481845 10998276471 11401882947 12256461945 12690319005 13156018785 13657200453 15343274583 15758308215 17703778365 18330460785 19003138245 19727067321 22061631501 22762000755 23567735295 24432606315 25572124305 31866801057 32878445535 32994829413 34205648841 36769385835 40971601359 46029823749 53111335095 54991382355 57009414735 59181201963 68286002265 76716372915 95600403171 98635336605 110308157505 138089471247 159334005285 164974147065 171028244205 177543605889 204858006795 230149118745 286801209513 295906009815 414268413741 478002015855 532630817667 690447356235 887718029445 1242805241223 1434006047565 2071342068705 2663154088335 3728415723669 6214026206115 18642078618345
• Sum of all divisors σ(n): 42295184870400
• Sum of proper divisors (its aliquot sum) s(n): 23653106252055
• 18642078618345 is an abundant number, because the sum of its proper divisors (23653106252055) is greater than itself. Its abundance is 5011027633710

Bases of 18642078618345

• Binary: 100001111010001110010011110010101001011101001₂
• Hexadecimal: 0x10F4727952E9
• Base-36: 6LW1WA9K9

Squares and roots of 18642078618345

• 18642078618345 squared (18642078618345²) is 347527095212555824170539025
• 18642078618345 cubed (18642078618345³) is 6478627430957533942749304902825903413625
• The square root of 18642078618345 is 4317647.3476124707
• The cube root of 18642078618345 is 26515.3956431197

Scales and comparisons

• 18,642,078,618,345 seconds is equal to 592,760 years, 22 weeks, 4 days, 19 hours, 45 minutes, 45 seconds.
• To count from 1 to 18,642,078,618,345 would take you about one million, four hundred eighty-one thousand, nine hundred one 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 18642078618345 cubic inches would be around 2209.6 feet tall.

Recreational maths with 18642078618345

• 18642078618345 backwards is 54381687024681
• 18642078618345 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18642078618345's digits is 63
• More coming soon!