18031985384042889

Names of 18031985384042889

• Cardinal: 18031985384042889 can be written as Eighteen quadrillion, thirty-one trillion, nine hundred eighty-five billion, three hundred eighty-four million, forty-two thousand, eight hundred eighty-nine.

Scientific notation

• Scientific notation: 1.8031985384042889 × 10¹⁶

Factors of 18031985384042889

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 13146

Divisors of 18031985384042889

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 21 27 43 49 63 129 147 189 301 387 441 903 1161 1323 1849 2107 2709 5547 6321 8127 12943 13093 16641 18963 38829 39279 49923 56889 79507 90601 91651 116487 117837 238521 271803 274953 349461 353511 556549 562999 641557 715563 815409 824859 1669647 1688997 1924671 2146689 2446227 2474577 3895843 3940993 5008941 5066991 5774013 11687529 11822979 15026823 15200973 17322039 24208957 27586951 35062587 35468937 72626871 82760853 105187761 106406811 169462699 171426649 217880613 248282559 508388097 514279947 653641839 744847677 1040985151 1186238893 1199986543 1525164291 1542839841 3122955453 3558716679 3599959629 4575492873 4628519523 7286896057 7371345907 8399905801 9368866359 10676150037 10799878887 21860688171 22114037721 25199717403 28106599077 32028450111 32399636661 51008272399 51599421349 65582064513 66342113163 75599152209 153024817197 154798264047 196746193539 199026339489 226797456627 316967874001 361195949443 459074451591 464394792141 950903622003 1083587848329 1377223354773 1393184376423 2218775118007 2852710866009 3250763544987 6656325354021 8558132598027 9752290634961 13629618582043 15531425826049 19968976062063 40888855746129 46594277478147 59906928186189 95407330074301 122666567238387 139782832434441 286221990222903 367999701715161 419348497303323 667851310520107 858665970668709 2003553931560321 2575997912006127 6010661794680963 18031985384042889
• Sum of all divisors σ(n): 31817844782856000
• Sum of proper divisors (its aliquot sum) s(n): 13785859398813111
• 18031985384042889 is a deficient number, because the sum of its proper divisors (13785859398813111) is less than itself. Its deficiency is 4246125985229778

Bases of 18031985384042889

• Binary: 1000000000011111111111011000011011010010011000110001001₂
• Hexadecimal: 0x400FFEC3693189
• Base-36: 4XJSZQ5LCW9

Squares and roots of 18031985384042889

• 18031985384042889 squared (18031985384042889²) is 325152496890336375098270591466321
• 18031985384042889 cubed (18031985384042889³) is 5863145071511596432054686505789325127649663041369
• The square root of 18031985384042889 is 134283228.2306427461
• The cube root of 18031985384042889 is 262229.2798232875

Scales and comparisons

• 18,031,985,384,042,889 seconds is equal to 573,361,358 years, 32 weeks, 1 day, 12 hours, 48 minutes, 9 seconds.
• To count from 1 to 18,031,985,384,042,889 would take you about one billion, seven hundred twenty million, eighty-four thousand and seventy-five 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 18031985384042889 cubic inches would be around 21852.4 feet tall.

Recreational maths with 18031985384042889

• 18031985384042889 backwards is 98824048358913081
• The number of decimal digits it has is: 17
• The sum of 18031985384042889's digits is 81
• More coming soon!