28908409

Names of 28908409

• Cardinal: 28908409 can be written as Twenty-eight million, nine hundred eight thousand, four hundred nine.

Scientific notation

• Scientific notation: 2.8908409 × 10⁷

Factors of 28908409

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 28908409

Divisors of 28908409

• Number of divisors d(n): 2
• Complete list of divisors:
  1 28908409
• Sum of all divisors σ(n): 28908410
• Sum of proper divisors (its aliquot sum) s(n): 1
• 28908409 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 28908408

Bases of 28908409

• Binary: 1101110010001101101111001₂
• Hexadecimal: 0x1B91B79
• Base-36: H7LVD

Squares and roots of 28908409

• 28908409 squared (28908409²) is 835696110911281
• 28908409 cubed (28908409³) is 24158644973932673861929
• The square root of 28908409 is 5376.6540710743
• The cube root of 28908409 is 306.9078971235

Scales and comparisons

• 28,908,409 seconds is equal to 47 weeks, 5 days, 14 hours, 6 minutes, 49 seconds.
• To count from 1 to 28,908,409 would take you about nineteen weeks!

  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 28908409 cubic inches would be around 25.6 feet tall.

Recreational maths with 28908409

• 28908409 backwards is 90480982
• The number of decimal digits it has is: 8
• The sum of 28908409's digits is 40
• More coming soon!