999938139

Names of 999938139

• Cardinal: 999938139 can be written as Nine hundred ninety-nine million, nine hundred thirty-eight thousand, one hundred thirty-nine.

Scientific notation

• Scientific notation: 9.99938139 × 10⁸

Factors of 999938139

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 10752057

Divisors of 999938139

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 31 93 10752023 32256069 333312713 999938139
• Sum of all divisors σ(n): 1376259072
• Sum of proper divisors (its aliquot sum) s(n): 376320933
• 999938139 is a deficient number, because the sum of its proper divisors (376320933) is less than itself. Its deficiency is 623617206

Bases of 999938139

• Binary: 111011100110011101100001011011₂
• Hexadecimal: 0x3B99D85B
• Base-36: GJC57F

Squares and roots of 999938139

• 999938139 squared (999938139²) is 999876281826783321
• 999938139 cubed (999938139³) is 999814428480113234356979619
• The square root of 999938139 is 31621.7984782649
• The cube root of 999938139 is 999.9793792415

Scales and comparisons

• 999,938,139 seconds is equal to 31 years, 41 weeks, 2 days, 8 hours, 35 minutes, 39 seconds.
• To count from 1 to 999,938,139 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 999938139 cubic inches would be around 83.3 feet tall.

Recreational maths with 999938139

• 999938139 backwards is 931839999
• The number of decimal digits it has is: 9
• The sum of 999938139's digits is 60
• More coming soon!