1218608018186020490

Names of 1218608018186020490

• Cardinal: 1218608018186020490 can be written as One quintillion, two hundred eighteen quadrillion, six hundred eight trillion, eighteen billion, one hundred eighty-six million, twenty thousand, four hundred ninety.

Scientific notation

• Scientific notation: 1.21860801818602049 × 10¹⁸

Factors of 1218608018186020490

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 88017869

Divisors of 1218608018186020490

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 5 7 10 14 19 31 35 38 41 62 70 82 95 133 155 190 205 217 266 287 310 410 434 574 589 665 779 1085 1178 1271 1330 1435 1558 2170 2542 2870 2945 3895 4123 5453 5890 6355 7790 8191 8246 8897 10906 12710 16382 17794 20615 24149 27265 40955 41230 44485 48298 54530 57337 81910 88970 114674 120745 155629 169043 241490 253921 286685 311258 335831 338086 507842 573370 671662 778145 845215 1089403 1269605 1556290 1679155 1690430 1777447 2178806 2350817 2539210 3358310 3554894 4701634 4824499 5447015 6380789 8887235 9648998 10410761 10894030 11754085 12761578 17774470 20821522 23508170 24122495 31903945 33771493 44665523 48244990 52053805 63807890 67542986 72875327 88009573 89331046 104107610 145750654 168857465 176019146 197804459 223327615 337714930 364376635 395608918 440047865 446655230 616067011 728753270 880095730 989022295 1232134022 1384631213 1672181887 1978044590 2728296763 2769262426 3080335055 3344363774 3608392493 5456593526 6160670110 6923156065 7216784986 8360909435 11705273209 13641483815 13846312130 16721818870 18041962465 19098077341 23410546418 25258747451 27282967630 36083924930 38196154682 50517494902 51837638497 58526366045 68559457367 95490386705 103675276994 111860167283 117052732090 126293737255 137118914734 190980773410 223720334566 252587474510 259188192485 342797286835 362863469479 479916201569 518376384970 559300836415 685594573670 720886412443 725726938958 783021170981 959832403138 1118601672830 1441772824886 1566042341962 1814317347395 2125343178377 2399581007845 3604432062215 3628634694790 3915105854905 4250686356754 4799162015690 5046204887101 7208864124430 7830211709810 10092409774202 10626715891885 13696841836417 14877402248639 21253431783770 22347478785733 25231024435505 27393683672834 29556342910163 29754804497278 44694957571466 50462048871010 59112685820326 68484209182085 74387011243195 95877892854919 111737393928665 136968418364170 147781714550815 148774022486390 156432351500131 191755785709838 206894400371141 223474787857330 295563429101630 312864703000262 413788800742282 424602096928927 479389464274595 561570515293097 782161757500655 849204193857854 916246630215053 958778928549190 1034472001855705 1123141030586194 1564323515001310 1832493260430106 2068944003711410 2123010484644635 2807852576465485 2972214678502489 3930993607051679 4246020969289270 4581233151075265 5615705152930970 5944429357004978 6413726411505371 7861987214103358 9162466302150530 12827452823010742 14861073392512445 17408685974086007 19654968035258395 29722146785024890 32068632057526855 34817371948172014 39309936070516790 64137264115053710 87043429870430035 121860801818602049 174086859740860070 243721603637204098 609304009093010245 1218608018186020490
• Sum of all divisors σ(n): 2790690146494709760
• Sum of proper divisors (its aliquot sum) s(n): 1572082128308689270
• 1218608018186020490 is an abundant number, because the sum of its proper divisors (1572082128308689270) is greater than itself. Its abundance is 353474110122668780

Bases of 1218608018186020490

• Binary: 1000011101001010111011000100100111100011010111010011010001010₂
• Hexadecimal: 0x10E95D893C6BA68A
• Base-36: 99AWHN51BF62

Squares and roots of 1218608018186020490

• 1218608018186020490 squared (1218608018186020490²) is 1485005501987260445287181262699840100
• 1218608018186020490 cubed (1218608018186020490³) is 1809639611772031963613575561135329122384164778323649000
• The square root of 1218608018186020490 is 1103905801.3191254581
• The cube root of 1218608018186020490 is 1068123.1891671055

Scales and comparisons

• 1,218,608,018,186,020,490 seconds is equal to 38,747,965,576 years, 11 weeks, 4 days, 14 hours, 34 minutes, 50 seconds.
• To count from 1 to 1,218,608,018,186,020,490 would take you about one hundred thirty-five billion, six hundred seventeen million, eight hundred seventy-nine thousand, five hundred sixteen 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 1218608018186020490 cubic inches would be around 89010.3 feet tall.

Recreational maths with 1218608018186020490

• 1218608018186020490 backwards is 0940206818108068121
• The number of decimal digits it has is: 19
• The sum of 1218608018186020490's digits is 65
• More coming soon!