18312755864

Names of 18312755864

• Cardinal: 18312755864 can be written as Eighteen billion, three hundred twelve million, seven hundred fifty-five thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 1.8312755864 × 10¹⁰

Factors of 18312755864

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 33768

Divisors of 18312755864

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 13 19 26 38 52 76 104 152 247 277 494 554 988 1108 1976 2216 3601 5263 7202 10526 14404 21052 28808 33457 42104 66914 68419 133828 136838 267656 273676 434941 547352 635683 869882 1271366 1739764 2542732 3479528 5085464 8263879 9267589 16527758 18535178 33055516 37070356 66111032 74140712 120478657 176084191 240957314 352168382 481914628 704336764 963829256 1408673528 2289094483 4578188966 9156377932 18312755864
• Sum of all divisors σ(n): 39065560800
• Sum of proper divisors (its aliquot sum) s(n): 20752804936
• 18312755864 is an abundant number, because the sum of its proper divisors (20752804936) is greater than itself. Its abundance is 2440049072

Bases of 18312755864

• Binary: 10001000011100001100111101010011000₂
• Hexadecimal: 0x443867A98
• Base-36: 8EUXWUW

Squares and roots of 18312755864

• 18312755864 squared (18312755864²) is 335357027334466386496
• 18312755864 cubed (18312755864³) is 6141311368852857608615514412544
• The square root of 18312755864 is 135324.6314016779
• The cube root of 18312755864 is 2635.8330663995

Scales and comparisons

• 18,312,755,864 seconds is equal to 582 years, 15 weeks, 4 hours, 37 minutes, 44 seconds.
• To count from 1 to 18,312,755,864 would take you about one thousand, one hundred sixty-four 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 18312755864 cubic inches would be around 219.7 feet tall.

Recreational maths with 18312755864

• 18312755864 backwards is 46855721381
• The number of decimal digits it has is: 11
• The sum of 18312755864's digits is 50
• More coming soon!