199909

Names of 199909

• Cardinal: 199909 can be written as One hundred ninety-nine thousand, nine hundred nine.

Scientific notation

• Scientific notation: 1.99909 × 10⁵

Factors of 199909

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 199909

Divisors of 199909

• Number of divisors d(n): 2
• Complete list of divisors:
  1 199909
• Sum of all divisors σ(n): 199910
• Sum of proper divisors (its aliquot sum) s(n): 1
• 199909 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 199908

Bases of 199909

• Binary: 110000110011100101₂
• Hexadecimal: 0x30CE5
• Base-36: 4A91

Squares and roots of 199909

• 199909 squared (199909²) is 39963608281
• 199909 cubed (199909³) is 7989084967846429
• The square root of 199909 is 447.1118428313
• The cube root of 199909 is 58.4714838983

Scales and comparisons

• 199,909 seconds is equal to 2 days, 7 hours, 31 minutes, 49 seconds.
• To count from 1 to 199,909 would take you about two days.

  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 199909 cubic inches would be around 4.9 feet tall.

Recreational maths with 199909

• 199909 backwards is 909991
• The number of decimal digits it has is: 6
• The sum of 199909's digits is 37
• More coming soon!