128084628

Names of 128084628

• Cardinal: 128084628 can be written as One hundred twenty-eight million, eighty-four thousand, six hundred twenty-eight.

Scientific notation

• Scientific notation: 1.28084628 × 10⁸

Factors of 128084628

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3644

Divisors of 128084628

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 42 49 61 84 98 122 147 183 196 244 294 366 427 588 732 854 1281 1708 2562 2989 3571 5124 5978 7142 8967 10713 11956 14284 17934 21426 24997 35868 42852 49994 74991 99988 149982 174979 217831 299964 349958 435662 524937 653493 699916 871324 1049874 1306986 1524817 2099748 2613972 3049634 4574451 6099268 9148902 10673719 18297804 21347438 32021157 42694876 64042314 128084628
• Sum of all divisors σ(n): 353456544
• Sum of proper divisors (its aliquot sum) s(n): 225371916
• 128084628 is an abundant number, because the sum of its proper divisors (225371916) is greater than itself. Its abundance is 97287288

Bases of 128084628

• Binary: 111101000100110101010010100₂
• Hexadecimal: 0x7A26A94
• Base-36: 249AQC

Squares and roots of 128084628

• 128084628 squared (128084628²) is 16405671929898384
• 128084628 cubed (128084628³) is 2101314386231076592441152
• The square root of 128084628 is 11317.4479455397
• The cube root of 128084628 is 504.0794627795

Scales and comparisons

• 128,084,628 seconds is equal to 4 years, 3 weeks, 5 days, 11 hours, 3 minutes, 48 seconds.
• To count from 1 to 128,084,628 would take you about six 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 128084628 cubic inches would be around 42 feet tall.

Recreational maths with 128084628

• 128084628 backwards is 826480821
• The number of decimal digits it has is: 9
• The sum of 128084628's digits is 39
• More coming soon!