18943431672021420

Names of 18943431672021420

• Cardinal: 18943431672021420 can be written as Eighteen quadrillion, nine hundred forty-three trillion, four hundred thirty-one billion, six hundred seventy-two million, twenty-one thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.894343167202142 × 10¹⁶

Factors of 18943431672021420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 616

Divisors of 18943431672021420

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 30 60 149 298 447 457 596 745 894 914 1371 1490 1788 1828 2235 2285 2742 2980 4470 4570 5484 6855 8940 9140 13710 22201 27420 44402 66603 68093 88804 111005 133206 136186 204279 208849 222010 266412 272372 333015 340465 408558 417698 444020 626547 666030 680930 817116 835396 1021395 1044245 1253094 1332060 1361860 2042790 2088490 2506188 3132735 3307949 4085580 4176980 6265470 6615898 9923847 10145857 12530940 13231796 16539745 19847694 20291714 30437571 31118501 33079490 39695388 40583428 49619235 50729285 60875142 62237002 66158980 93355503 95443993 99238470 101458570 121750284 124474004 152187855 155592505 186711006 190887986 198476940 202917140 286331979 304375710 311185010 373422012 381775972 466777515 477219965 572663958 608751420 622370020 933555030 954439930 1145327916 1431659895 1511732693 1867110060 1908879860 2863319790 3023465386 4535198079 4636656649 5726639580 6046930772 7558663465 9070396158 9273313298 13909969947 14221154957 15117326930 18140792316 18546626596 22675990395 23183283245 27819939894 28442309914 30234653860 42663464871 45351980790 46366566490 55639879788 56884619828 69549849735 71105774785 85326929742 90703961580 92733132980 139099699470 142211549570 170653859484 213317324355 278199398940 284423099140 426634648710 690861840701 853269297420 1381723681402 2072585522103 2118952088593 2763447362804 3454309203505 4145171044206 4237904177186 6356856265779 6908618407010 8290342088412 8475808354372 10362927610515 10594760442965 12713712531558 13817236814020 20725855221030 21189520885930 25427425063116 31784281328895 41451710442060 42379041771860 63568562657790 127137125315580 315723861200357 631447722400714 947171583601071 1262895444801428 1578619306001785 1894343167202142 3157238612003570 3788686334404284 4735857918005355 6314477224007140 9471715836010710 18943431672021420
• Sum of all divisors σ(n): 53517103078320000
• Sum of proper divisors (its aliquot sum) s(n): 34573671406298580
• 18943431672021420 is an abundant number, because the sum of its proper divisors (34573671406298580) is greater than itself. Its abundance is 15630239734277160

Bases of 18943431672021420

• Binary: 1000011010011001111001101100011101000110100000110101100₂
• Hexadecimal: 0x434CF363A341AC
• Base-36: 56IVWDCLYGC

Squares and roots of 18943431672021420

• 18943431672021420 squared (18943431672021420²) is 358853603512544252196828938816400
• 18943431672021420 cubed (18943431672021420³) is 6797918718398547880554203595422798028890247288000
• The square root of 18943431672021420 is 137635139.6701489891
• The cube root of 18943431672021420 is 266575.0822901115

Scales and comparisons

• 18,943,431,672,021,420 seconds is equal to 602,342,531 years, 15 weeks, 3 hours, 17 minutes.
• To count from 1 to 18,943,431,672,021,420 would take you about one billion, eight hundred seven million, twenty-seven thousand, five hundred ninety-three 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 18943431672021420 cubic inches would be around 22214.6 feet tall.

Recreational maths with 18943431672021420

• 18943431672021420 backwards is 02412027613434981
• The number of decimal digits it has is: 17
• The sum of 18943431672021420's digits is 57
• More coming soon!