18997333921256418

Names of 18997333921256418

• Cardinal: 18997333921256418 can be written as Eighteen quadrillion, nine hundred ninety-seven trillion, three hundred thirty-three billion, nine hundred twenty-one million, two hundred fifty-six thousand, four hundred eighteen.

Scientific notation

• Scientific notation: 1.8997333921256418 × 10¹⁶

Factors of 18997333921256418

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1046836165

Divisors of 18997333921256418

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 54 63 78 81 91 117 126 162 182 189 234 273 351 378 546 567 702 819 1053 1134 1231 1638 2106 2457 2462 3693 4914 7371 7386 8617 11079 14742 16003 17234 22158 25851 32006 33237 48009 51702 66474 77553 96018 99711 112021 144027 155106 199422 224042 232659 288054 336063 432081 465318 672126 697977 864162 1008189 1296243 1395954 2016378 2592486 3024567 6049134 9073701 18147402 1046834909 2093669818 3140504727 6281009454 7327844363 9421514181 13608853817 14655688726 18843028362 21983533089 27217707634 28264542543 40826561451 43967066178 56529085086 65950599267 81653122902 84793627629 95261976719 122479684353 131901198534 169587255258 190523953438 197851797801 244959368706 285785930157 367439053059 395703595602 571571860314 593555393403 734878106118 857357790471 1102317159177 1187110786806 1288653772979 1714715580942 2204634318354 2572073371413 2577307545958 3865961318937 5144146742826 7716220114239 7731922637874 9020576410853 11597883956811 15432440228478 16752499048727 18041152821706 23195767913622 27061729232559 33504998097454 34793651870433 50257497146181 54123458465118 69587303740866 81185187697677 100514994292362 104380955611299 117267493341089 150772491438543 162370375395354 208761911222598 234534986682178 243555563093031 301544982877086 351802480023267 452317474315629 487111126186062 703604960046534 730666689279093 904634948631258 1055407440069801 1356952422946887 1461333378558186 2110814880139602 2713904845893774 3166222320209403 6332444640418806 9498666960628209 18997333921256418
• Sum of all divisors σ(n): 52434067964382720
• Sum of proper divisors (its aliquot sum) s(n): 33436734043126302
• 18997333921256418 is an abundant number, because the sum of its proper divisors (33436734043126302) is greater than itself. Its abundance is 14439400121869884

Bases of 18997333921256418

• Binary: 1000011011111011111100101111100000011100101001111100010₂
• Hexadecimal: 0x437DF97C0E53E2
• Base-36: 571ZQQ0384I

Squares and roots of 18997333921256418

• 18997333921256418 squared (18997333921256418²) is 360898696115719750979775706190724
• 18997333921256418 cubed (18997333921256418³) is 6856113041856374688478366635295502867778817066632
• The square root of 18997333921256418 is 137830816.2975770017
• The cube root of 18997333921256418 is 266827.6832902749

Scales and comparisons

• 18,997,333,921,256,418 seconds is equal to 604,056,456 years, 4 weeks, 2 days, 13 hours, 18 seconds.
• To count from 1 to 18,997,333,921,256,418 would take you about one billion, eight hundred twelve million, one hundred sixty-nine thousand, three hundred sixty-eight 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 18997333921256418 cubic inches would be around 22235.6 feet tall.

Recreational maths with 18997333921256418

• 18997333921256418 backwards is 81465212933379981
• 18997333921256418 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18997333921256418's digits is 81
• More coming soon!