121399389783945

Names of 121399389783945

• Cardinal: 121399389783945 can be written as One hundred twenty-one trillion, three hundred ninety-nine billion, three hundred eighty-nine million, seven hundred eighty-three thousand, nine hundred forty-five.

Scientific notation

• Scientific notation: 1.21399389783945 × 10¹⁴

Factors of 121399389783945

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 479148

Divisors of 121399389783945

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 5 7 9 13 15 21 35 39 45 63 65 91 105 117 195 273 315 455 585 819 1365 4095 72997 218991 364985 406123 510979 656973 948961 1094955 1218369 1532937 2030615 2554895 2842861 2846883 3284865 3655107 4598811 4744805 5279599 6091845 6642727 7664685 8528583 8540649 14214305 14234415 15838797 18275535 19928181 22994055 25585749 26397995 33213635 36957193 42642915 42703245 47516391 59784543 79193985 99640905 110871579 127928745 184785965 237581955 298922715 332614737 554357895 1663073685 29645760631 88937281893 148228803155 207520324417 266811845679 385394888203 444686409465 622560973251 1037601622085 1156184664609 1334059228395 1867682919753 1926974441015 2697764217421 3112804866255 3468553993827 5780923323045 8093292652263 9338414598765 13488821087105 17342769969135 24279877956789 40466463261315 121399389783945
• Sum of all divisors σ(n): 258989550473472
• Sum of proper divisors (its aliquot sum) s(n): 137590160689527
• 121399389783945 is an abundant number, because the sum of its proper divisors (137590160689527) is greater than itself. Its abundance is 16190770905582

Bases of 121399389783945

• Binary: 11011100110100101111111100000010000011110001001₂
• Hexadecimal: 0x6E697F810789
• Base-36: 17163Y8KG9

Squares and roots of 121399389783945

• 121399389783945 squared (121399389783945²) is 14737811839914209633779763025
• 121399389783945 cubed (121399389783945³) is 1789161364116184764800322063153268049633625
• The square root of 121399389783945 is 11018139.1252763279
• The cube root of 121399389783945 is 49515.2338629295

Scales and comparisons

• 121,399,389,783,945 seconds is equal to 3,860,125 years, 4 weeks, 1 day, 21 hours, 45 minutes, 45 seconds.
• To count from 1 to 121,399,389,783,945 would take you about nine million, six hundred fifty thousand, three hundred twelve 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 121399389783945 cubic inches would be around 4126.3 feet tall.

Recreational maths with 121399389783945

• 121399389783945 backwards is 549387983993121
• The number of decimal digits it has is: 15
• The sum of 121399389783945's digits is 81
• More coming soon!