999972127438306981

Names of 999972127438306981

• Cardinal: 999972127438306981 can be written as Nine hundred ninety-nine quadrillion, nine hundred seventy-two trillion, one hundred twenty-seven billion, four hundred thirty-eight million, three hundred six thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 9.99972127438306981 × 10¹⁷

Factors of 999972127438306981

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 735863386

Divisors of 999972127438306981

• Number of divisors d(n): 24
• Complete list of divisors:
  1 7 49 727 5089 35623 38149 267043 1869301 27734323 194140261 735824503 1358981827 5150771521 36055400647 534944413681 3744610895767 26212276270369 28070968964947 196496782754629 1375477479282403 20407594437516469 142853161062615283 999972127438306981
• Sum of all divisors σ(n): 1164863463526089600
• Sum of proper divisors (its aliquot sum) s(n): 164891336087782619
• 999972127438306981 is a deficient number, because the sum of its proper divisors (164891336087782619) is less than itself. Its deficiency is 835080791350524362

Bases of 999972127438306981

• Binary: 110111100000100111010101101000010001010000000111111010100101₂
• Hexadecimal: 0xDE09D5A11407EA5
• Base-36: 7LI4J9IPJKBP

Squares and roots of 999972127438306981

• 999972127438306981 squared (999972127438306981²) is 999944255653493657331150183593334361
• 999972127438306981 cubed (999972127438306981³) is 999916384645538375366214379491732018219745962493474141
• The square root of 999972127438306981 is 999986063.6220421751
• The cube root of 999972127438306981 is 999990.7090597811

Scales and comparisons

• 999,972,127,438,306,981 seconds is equal to 31,796,020,535 years, 34 weeks, 2 days, 9 hours, 43 minutes, 1 second.
• To count from 1 to 999,972,127,438,306,981 would take you about ninety-five billion, three hundred eighty-eight million, sixty-one thousand, six hundred six 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 999972127438306981 cubic inches would be around 83332.6 feet tall.

Recreational maths with 999972127438306981

• 999972127438306981 backwards is 189603834721279999
• The number of decimal digits it has is: 18
• The sum of 999972127438306981's digits is 97
• More coming soon!