18685862313655842

Names of 18685862313655842

• Cardinal: 18685862313655842 can be written as Eighteen quadrillion, six hundred eighty-five trillion, eight hundred sixty-two billion, three hundred thirteen million, six hundred fifty-five thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 1.8685862313655842 × 10¹⁶

Factors of 18685862313655842

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 427

Divisors of 18685862313655842

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 6 9 18 27 54 81 162 193 229 243 386 458 486 579 687 729 1158 1374 1458 1737 2061 2187 3474 4122 4374 5211 6183 6561 10422 12366 13122 15633 18549 19683 31266 37098 37249 39366 44197 46899 52441 55647 59049 74498 88394 93798 104882 111294 111747 118098 132591 140697 157323 166941 177147 223494 265182 281394 314646 333882 335241 354294 397773 422091 471969 500823 531441 670482 795546 844182 943938 1001646 1005723 1062882 1193319 1266273 1415907 1502469 1594323 2011446 2386638 2532546 2831814 3004938 3017169 3188646 3579957 3798819 4247721 4507407 4782969 6034338 7159914 7597638 8495442 8530021 9014814 9051507 9565938 10121113 10739871 11396457 12743163 13522221 17060042 18103014 20242226 21479742 22792914 25486326 25590063 27044442 27154521 30363339 32219613 34189371 38229489 40566663 51180126 54309042 60726678 64439226 68378742 76458978 76770189 81133326 81463563 91090017 96658839 102568113 114688467 121699989 153540378 162927126 182180034 193317678 205136226 229376934 230310567 243399978 244390689 273270051 289976517 307704339 344065401 365099967 460621134 488781378 546540102 579953034 615408678 688130802 690931701 730199934 733172067 819810153 869929551 923113017 1032196203 1095299901 1381863402 1466344134 1639620306 1739859102 1846226034 1953374809 2064392406 2072795103 2190599802 2199516201 2459430459 2609788653 3096588609 3906749618 4145590206 4399032402 4918860918 5219577306 5860124427 6193177218 6218385309 6598548603 7378291377 7829365959 9289765827 11720248854 12436770618 13197097206 14756582754 15658731918 17580373281 18579531654 18655155927 19795645809 22134874131 23488097877 27869297481 35160746562 37310311854 39591291618 44269748262 46976195754 52741119843 55738594962 55965467781 59386937427 66404622393 70464293631 83607892443 105482239686 111930935562 118773874854 132809244786 140928587262 158223359529 167215784886 167896403343 178160812281 199213867179 211392880893 250823677329 316446719058 335792806686 356321624562 398427734358 422785761786 474670078587 501647354658 503689210029 597641601537 949340157174 1007378420058 1195283203074 1424010235761 1511067630087 1792924804611 2848020471522 3022135260174 3585849609222 4272030707283 4533202890261 5378774413833 8544061414566 9066405780522 10757548827666 12816092121849 13599608670783 16136323241499 25632184243698 27199217341566 32272646482998 38448276365547 40798826012349 48408969724497 76896552731094 81597652024698 96817939448994 115344829096641 230689658193282 346034487289923 692068974579846 1038103461869769 2076206923739538 3114310385609307 6228620771218614 9342931156827921 18685862313655842
• Sum of all divisors σ(n): 42447513130849827
• Sum of proper divisors (its aliquot sum) s(n): 23761650817193985
• 18685862313655842 is an abundant number, because the sum of its proper divisors (23761650817193985) is greater than itself. Its abundance is 5075788503538143

Bases of 18685862313655842

• Binary: 1000010011000101011000101011001100001101111111000100010₂
• Hexadecimal: 0x4262B15986FE22
• Base-36: 53ZL2N2VS4I

Squares and roots of 18685862313655842

• 18685862313655842 squared (18685862313655842²) is 349161450404903656591595220728964
• 18685862313655842 cubed (18685862313655842³) is 6524382787502402571057235991516609787887057207688
• The square root of 18685862313655842 is 136696241.0370374523
• The cube root of 18685862313655842 is 265361.3786344861

Scales and comparisons

• 18,685,862,313,655,842 seconds is equal to 594,152,622 years, 21 weeks, 1 day, 4 hours, 50 minutes, 42 seconds.
• To count from 1 to 18,685,862,313,655,842 would take you about one billion, seven hundred eighty-two million, four hundred fifty-seven thousand, eight hundred sixty-seven 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 18685862313655842 cubic inches would be around 22113.4 feet tall.

Recreational maths with 18685862313655842

• 18685862313655842 backwards is 24855631326858681
• 18685862313655842 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18685862313655842's digits is 81
• More coming soon!