9949939920

Names of 9949939920

• Cardinal: 9949939920 can be written as Nine billion, nine hundred forty-nine million, nine hundred thirty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 9.94993992 × 10⁹

Factors of 9949939920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 13819371

Divisors of 9949939920

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 13819361 27638722 41458083 55277444 69096805 82916166 110554888 124374249 138193610 165832332 207290415 221109776 248748498 276387220 331664664 414580830 497496996 552774440 621871245 663329328 829161660 994993992 1105548880 1243742490 1658323320 1989987984 2487484980 3316646640 4974969960 9949939920
• Sum of all divisors σ(n): 33415217316
• Sum of proper divisors (its aliquot sum) s(n): 23465277396
• 9949939920 is an abundant number, because the sum of its proper divisors (23465277396) is greater than itself. Its abundance is 13515337476

Bases of 9949939920

• Binary: 1001010001000100000000100011010000₂
• Hexadecimal: 0x2511008D0
• Base-36: 4KJXQS0

Squares and roots of 9949939920

• 9949939920 squared (9949939920²) is 99001304411609606400
• 9949939920 cubed (9949939920³) is 985057030897146534174847488000
• The square root of 9949939920 is 99749.3855620173
• The cube root of 9949939920 is 2150.8336352629

Scales and comparisons

• 9,949,939,920 seconds is equal to 316 years, 19 weeks, 4 days, 8 hours, 12 minutes.
• To count from 1 to 9,949,939,920 would take you about six hundred thirty-two 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 9949939920 cubic inches would be around 179.2 feet tall.

Recreational maths with 9949939920

• 9949939920 backwards is 0299399499
• The number of decimal digits it has is: 10
• The sum of 9949939920's digits is 63
• More coming soon!