999139930

Names of 999139930

• Cardinal: 999139930 can be written as Nine hundred ninety-nine million, one hundred thirty-nine thousand, nine hundred thirty.

Scientific notation

• Scientific notation: 9.9913993 × 10⁸

Factors of 999139930

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 119933

Divisors of 999139930

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 5 10 839 1678 4195 8390 119087 238174 595435 1190870 99913993 199827986 499569965 999139930
• Sum of all divisors σ(n): 1800610560
• Sum of proper divisors (its aliquot sum) s(n): 801470630
• 999139930 is a deficient number, because the sum of its proper divisors (801470630) is less than itself. Its deficiency is 197669300

Bases of 999139930

• Binary: 111011100011011010101001011010₂
• Hexadecimal: 0x3B8DAA5A
• Base-36: GIV1AY

Squares and roots of 999139930

• 999139930 squared (999139930²) is 998280599720404900
• 999139930 cubed (999139930³) is 997422008525003371357657000
• The square root of 999139930 is 31609.1747756881
• The cube root of 999139930 is 999.7132277697

Scales and comparisons

• 999,139,930 seconds is equal to 31 years, 40 weeks, 2 hours, 52 minutes, 10 seconds.
• To count from 1 to 999,139,930 would take you about forty-seven 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 999139930 cubic inches would be around 83.3 feet tall.

Recreational maths with 999139930

• 999139930 backwards is 039931999
• The number of decimal digits it has is: 9
• The sum of 999139930's digits is 52
• More coming soon!