18001155605

Names of 18001155605

• Cardinal: 18001155605 can be written as Eighteen billion, one million, one hundred fifty-five thousand, six hundred five.

Scientific notation

• Scientific notation: 1.8001155605 × 10¹⁰

Factors of 18001155605

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 129895

Divisors of 18001155605

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 40093 89797 200465 448985 3600231121 18001155605
• Sum of all divisors σ(n): 21602166072
• Sum of proper divisors (its aliquot sum) s(n): 3601010467
• 18001155605 is a deficient number, because the sum of its proper divisors (3601010467) is less than itself. Its deficiency is 14400145138

Bases of 18001155605

• Binary: 10000110000111100111101011000010101₂
• Hexadecimal: 0x430F3D615
• Base-36: 89PF8K5

Squares and roots of 18001155605

• 18001155605 squared (18001155605²) is 324041603115422916025
• 18001155605 cubed (18001155605³) is 5833123320174380686748873070125
• The square root of 18001155605 is 134168.3852664257
• The cube root of 18001155605 is 2620.7974771173

Scales and comparisons

• 18,001,155,605 seconds is equal to 572 years, 19 weeks, 5 days, 17 hours, 5 seconds.
• To count from 1 to 18,001,155,605 would take you about one thousand, one hundred forty-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 18001155605 cubic inches would be around 218.4 feet tall.

Recreational maths with 18001155605

• 18001155605 backwards is 50655110081
• The number of decimal digits it has is: 11
• The sum of 18001155605's digits is 32
• More coming soon!