20749018018

Names of 20749018018

• Cardinal: 20749018018 can be written as Twenty billion, seven hundred forty-nine million, eighteen thousand and eighteen.

Scientific notation

• Scientific notation: 2.0749018018 × 10¹⁰

Factors of 20749018018

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 195745508

Divisors of 20749018018

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 53 106 195745453 391490906 10374509009 20749018018
• Sum of all divisors σ(n): 31710763548
• Sum of proper divisors (its aliquot sum) s(n): 10961745530
• 20749018018 is a deficient number, because the sum of its proper divisors (10961745530) is less than itself. Its deficiency is 9787272488

Bases of 20749018018

• Binary: 10011010100101111001110001110100010₂
• Hexadecimal: 0x4D4BCE3A2
• Base-36: 9J5FGRM

Squares and roots of 20749018018

• 20749018018 squared (20749018018²) is 430521748711288648324
• 20749018018 cubed (20749018018³) is 8932903521151396444073541501832
• The square root of 20749018018 is 144045.1943592705
• The cube root of 20749018018 is 2747.8889812499

Scales and comparisons

• 20,749,018,018 seconds is equal to 659 years, 39 weeks, 1 day, 16 hours, 6 minutes, 58 seconds.
• To count from 1 to 20,749,018,018 would take you about one thousand, three hundred nineteen 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 20749018018 cubic inches would be around 229 feet tall.

Recreational maths with 20749018018

• 20749018018 backwards is 81081094702
• The number of decimal digits it has is: 11
• The sum of 20749018018's digits is 40
• More coming soon!