30809909

Names of 30809909

• Cardinal: 30809909 can be written as Thirty million, eight hundred nine thousand, nine hundred nine.

Scientific notation

• Scientific notation: 3.0809909 × 10⁷

Factors of 30809909

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 2370006

Divisors of 30809909

• Number of divisors d(n): 4
• Complete list of divisors:
  1 13 2369993 30809909
• Sum of all divisors σ(n): 33179916
• Sum of proper divisors (its aliquot sum) s(n): 2370007
• 30809909 is a deficient number, because the sum of its proper divisors (2370007) is less than itself. Its deficiency is 28439902

Bases of 30809909

• Binary: 1110101100001111100110101₂
• Hexadecimal: 0x1D61F35
• Base-36: ICD2T

Squares and roots of 30809909

• 30809909 squared (30809909²) is 949250492588281
• 30809909 cubed (30809909³) is 29246321294850112076429
• The square root of 30809909 is 5550.6674373451
• The cube root of 30809909 is 313.4946534873

Scales and comparisons

• 30,809,909 seconds is equal to 50 weeks, 6 days, 14 hours, 18 minutes, 29 seconds.
• To count from 1 to 30,809,909 would take you about twenty-four weeks!

  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 30809909 cubic inches would be around 26.1 feet tall.

Recreational maths with 30809909

• 30809909 backwards is 90990803
• The number of decimal digits it has is: 8
• The sum of 30809909's digits is 38
• More coming soon!