9990777816

Names of 9990777816

• Cardinal: 9990777816 can be written as Nine billion, nine hundred ninety million, seven hundred seventy-seven thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 9.990777816 × 10⁹

Factors of 9990777816

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2272

Divisors of 9990777816

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 972 1944 2267 4534 6801 9068 13602 18136 20403 27204 40806 54408 61209 81612 122418 163224 183627 244836 367254 489672 550881 734508 1101762 1469016 2203524 4407048 5139289 10278578 15417867 20557156 30835734 41114312 46253601 61671468 92507202 123342936 138760803 185014404 277521606 370028808 416282409 555043212 832564818 1110086424 1248847227 1665129636 2497694454 3330259272 4995388908 9990777816
• Sum of all divisors σ(n): 28072901220
• Sum of proper divisors (its aliquot sum) s(n): 18082123404
• 9990777816 is an abundant number, because the sum of its proper divisors (18082123404) is greater than itself. Its abundance is 8091345588

Bases of 9990777816

• Binary: 1001010011011111110010101111011000₂
• Hexadecimal: 0x2537F2BD8
• Base-36: 4L891I0

Squares and roots of 9990777816

• 9990777816 squared (9990777816²) is 99815641368677729856
• 9990777816 cubed (9990777816³) is 997235895475997340698565674496
• The square root of 9990777816 is 99953.8784440105
• The cube root of 9990777816 is 2153.7721998991

Scales and comparisons

• 9,990,777,816 seconds is equal to 317 years, 35 weeks, 1 day, 3 minutes, 36 seconds.
• To count from 1 to 9,990,777,816 would take you about six hundred thirty-five 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 9990777816 cubic inches would be around 179.5 feet tall.

Recreational maths with 9990777816

• 9990777816 backwards is 6187770999
• The number of decimal digits it has is: 10
• The sum of 9990777816's digits is 63
• More coming soon!