18704728378889982

Names of 18704728378889982

• Cardinal: 18704728378889982 can be written as Eighteen quadrillion, seven hundred four trillion, seven hundred twenty-eight billion, three hundred seventy-eight million, eight hundred eighty-nine thousand, nine hundred eighty-two.

Scientific notation

• Scientific notation: 1.8704728378889982 × 10¹⁶

Factors of 18704728378889982

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 36126

Divisors of 18704728378889982

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 9 11 13 18 22 26 27 33 39 54 66 78 99 117 121 143 169 198 234 242 286 297 338 351 363 429 507 594 702 726 858 1014 1089 1287 1521 1573 1859 2178 2197 2574 3042 3146 3267 3718 3861 4394 4563 4719 5577 6534 6591 7722 9126 9438 11154 13182 14157 16731 19773 20449 24167 28314 33462 36097 39546 40898 42471 48334 50193 59319 61347 72194 72501 84942 100386 108291 118638 122694 145002 184041 216582 217503 265837 324873 368082 397067 435006 469261 531674 552123 649746 652509 794134 797511 938522 974619 1104246 1191201 1305018 1407783 1595022 1949238 2382402 2392533 2815566 3573603 4223349 4367737 4785066 5161871 6100393 7147206 7177599 8446698 8735474 10323742 10720809 12200786 12670047 13103211 14355198 15485613 18301179 21441618 25340094 26206422 30971226 36602358 39309633 46456839 54903537 56780581 67104323 78619266 79305109 92913678 109807074 113561162 117928899 134208646 139370517 158610218 164710611 170341743 201312969 235857798 237915327 278741034 329421222 340683486 402625938 475830654 511025229 603938907 713745981 738147553 872356199 1022050458 1207877814 1302993409 1427491962 1476295106 1533075687 1744712398 1811816721 2141237943 2214442659 2605986818 2617068597 3066151374 3623633442 3908980227 4282475886 4428885318 5234137194 6643327977 7817960454 7851205791 9595918189 11726940681 13286655954 14332927499 15702411582 16938914317 19191836378 19929983931 23453881362 23553617373 28665854998 28787754567 33877828634 35180822043 39859967862 42998782497 47107234746 50816742951 57575509134 70361644086 85997564994 86363263701 101633485902 128996347491 152450228853 157662202489 172726527402 186328057487 220205886121 257992694982 259089791103 304900457706 315324404978 372656114974 386989042473 440411772242 457350686559 472986607467 518179582206 558984172461 660617658363 773978084946 914701373118 945973214934 1117968344922 1321235316726 1418959822401 1676952517383 1981852975089 2049608632357 2422264747331 2837919644802 2862676519573 3353905034766 3963705950178 4099217264714 4256879467203 4844529494662 5030857552149 5725353039146 5945558925267 6148825897071 7266794241993 8513758934406 8588029558719 10061715104298 11891117850534 12297651794142 14533588483986 17176059117438 18446477691213 21800382725979 25764088676157 26644912220641 31489441715303 36892955382426 43600765451958 51528177352314 53289824441282 55339433073639 62978883430606 65401148177937 77292266028471 79934736661923 94468325145909 110678866147278 130802296355874 154584532056942 159869473323846 188936650291818 239804209985769 283404975437727 346383858868333 479608419971538 566809950875454 692767717736666 719412629957307 850214926313181 1039151576604999 1438825259914614 1700429852626362 2078303153209998 3117454729814997 6234909459629994 9352364189444991 18704728378889982
• Sum of all divisors σ(n): 49495315217493600
• Sum of proper divisors (its aliquot sum) s(n): 30790586838603618
• 18704728378889982 is an abundant number, because the sum of its proper divisors (30790586838603618) is greater than itself. Its abundance is 12085858459713636

Bases of 18704728378889982

• Binary: 1000010011100111101100111110010101001001101011011111110₂
• Hexadecimal: 0x4273D9F2A4D6FE
• Base-36: 5469TLB0KJI

Squares and roots of 18704728378889982

• 18704728378889982 squared (18704728378889982²) is 349866863728052254027410459960324
• 18704728378889982 cubed (18704728378889982³) is 6544164654807333081687788621417727892850881074168
• The square root of 18704728378889982 is 136765230.8844977675
• The cube root of 18704728378889982 is 265450.6554198259

Scales and comparisons

• 18,704,728,378,889,982 seconds is equal to 594,752,504 years, 48 weeks, 16 hours, 59 minutes, 42 seconds.
• To count from 1 to 18,704,728,378,889,982 would take you about one billion, seven hundred eighty-four million, two hundred fifty-seven thousand, five hundred fourteen 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 18704728378889982 cubic inches would be around 22120.9 feet tall.

Recreational maths with 18704728378889982

• 18704728378889982 backwards is 28998887382740781
• 18704728378889982 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18704728378889982's digits is 99
• More coming soon!