9949109821

Names of 9949109821

• Cardinal: 9949109821 can be written as Nine billion, nine hundred forty-nine million, one hundred nine thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 9.949109821 × 10⁹

Factors of 9949109821

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 209

Divisors of 9949109821

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 19 43 61 79 133 301 361 427 553 817 1159 1501 2527 2623 3397 4819 5719 6859 8113 10507 15523 18361 22021 23779 28519 33733 48013 49837 64543 91561 108661 154147 199633 207217 294937 348859 418399 451801 541861 640927 946903 1226317 1450519 1739659 2064559 2928793 3793027 3937123 6628321 8584219 12177613 17991157 23300023 27559861 33053521 74805337 125938099 163100161 231374647 523637359 1421301403 9949109821
• Sum of all divisors σ(n): 12640460800
• Sum of proper divisors (its aliquot sum) s(n): 2691350979
• 9949109821 is a deficient number, because the sum of its proper divisors (2691350979) is less than itself. Its deficiency is 7257758842

Bases of 9949109821

• Binary: 1001010001000000110101111000111101₂
• Hexadecimal: 0x251035E3D
• Base-36: 4KJFY9P

Squares and roots of 9949109821

• 9949109821 squared (9949109821²) is 98984786230318652041
• 9949109821 cubed (9949109821³) is 984810508813648868980594794661
• The square root of 9949109821 is 99745.2245523563
• The cube root of 9949109821 is 2150.7738206805

Scales and comparisons

• 9,949,109,821 seconds is equal to 316 years, 18 weeks, 1 day, 17 hours, 37 minutes, 1 second.
• To count from 1 to 9,949,109,821 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 9949109821 cubic inches would be around 179.2 feet tall.

Recreational maths with 9949109821

• 9949109821 backwards is 1289019499
• The number of decimal digits it has is: 10
• The sum of 9949109821's digits is 52
• More coming soon!