18243985700405465

Names of 18243985700405465

• Cardinal: 18243985700405465 can be written as Eighteen quadrillion, two hundred forty-three trillion, nine hundred eighty-five billion, seven hundred million, four hundred five thousand, four hundred sixty-five.

Scientific notation

• Scientific notation: 1.8243985700405465 × 10¹⁶

Factors of 18243985700405465

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1527085106

Divisors of 18243985700405465

• Number of divisors d(n): 144
• Complete list of divisors:
  1 5 7 11 13 31 35 49 55 65 77 91 121 143 155 217 245 341 385 403 455 539 605 637 715 847 1001 1085 1519 1573 1705 2015 2387 2695 2821 3185 3751 4235 4433 5005 5929 7007 7595 7865 11011 11935 14105 16709 18755 19747 22165 26257 29645 31031 35035 48763 55055 77077 83545 98735 131285 155155 183799 217217 243815 341341 385385 918995 1086085 1706705 2389387 11946935 1527085039 7635425195 10689595273 16797935429 19852105507 47339636209 53447976365 74827166911 83989677145 99260527535 117585548003 138964738549 184777289719 218373160577 236698181045 331377453463 374135834555 520735998299 587927740015 615415270717 694823692745 823098836021 923886448595 972753169843 1091865802885 1293441028033 1528612124039 1656887267315 2319642174241 2402104766347 2603679991495 3077076353585 3645151988093 4115494180105 4307906895019 4863765849215 5728095981289 6467205140165 6769567977887 7643060620195 9054087196231 10700284868273 11598210871205 12010523831735 16814733364429 18225759940465 21539534475095 25516063916651 28640479906445 30155348265133 33847839889435 40096671869023 45270435981155 47386975845209 53501424341365 74465247756757 84073666822145 117703133551003 127580319583255 150776741325665 200483359345115 236934879226045 280676703083161 331708830916463 372326238783785 521256734297299 588515667755015 1403383515415805 1658544154582315 2606283671486495 3648797140081093 18243985700405465
• Sum of all divisors σ(n): 31118523577989120
• Sum of proper divisors (its aliquot sum) s(n): 12874537877583655
• 18243985700405465 is a deficient number, because the sum of its proper divisors (12874537877583655) is less than itself. Its deficiency is 5369447822821810

Bases of 18243985700405465

• Binary: 1000000110100001100111011101110111101011100000011011001₂
• Hexadecimal: 0x40D0CEEEF5C0D9
• Base-36: 4ZMYBBS9PEH

Squares and roots of 18243985700405465

• 18243985700405465 squared (18243985700405465²) is 332843014236599085323865401866225
• 18243985700405465 cubed (18243985700405465³) is 6072383192212366322049122908503003298150188919625
• The square root of 18243985700405465 is 135070299.1053379765
• The cube root of 18243985700405465 is 263252.9466592145

Scales and comparisons

• 18,243,985,700,405,465 seconds is equal to 580,102,312 years, 47 weeks, 5 days, 20 hours, 11 minutes, 5 seconds.
• To count from 1 to 18,243,985,700,405,465 would take you about one billion, seven hundred forty million, three hundred six thousand, nine hundred thirty-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 18243985700405465 cubic inches would be around 21937.7 feet tall.

Recreational maths with 18243985700405465

• 18243985700405465 backwards is 56450400758934281
• The number of decimal digits it has is: 17
• The sum of 18243985700405465's digits is 71
• More coming soon!