28996009

Names of 28996009

• Cardinal: 28996009 can be written as Twenty-eight million, nine hundred ninety-six thousand and nine.

Scientific notation

• Scientific notation: 2.8996009 × 10⁷

Factors of 28996009

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4142294

Divisors of 28996009

• Number of divisors d(n): 4
• Complete list of divisors:
  1 7 4142287 28996009
• Sum of all divisors σ(n): 33138304
• Sum of proper divisors (its aliquot sum) s(n): 4142295
• 28996009 is a deficient number, because the sum of its proper divisors (4142295) is less than itself. Its deficiency is 24853714

Bases of 28996009

• Binary: 1101110100111000110101001₂
• Hexadecimal: 0x1BA71A9
• Base-36: H9HGP

Squares and roots of 28996009

• 28996009 squared (28996009²) is 840768537928081
• 28996009 cubed (28996009³) is 24378932092679478028729
• The square root of 28996009 is 5384.7942393373
• The cube root of 28996009 is 307.2175881099

Scales and comparisons

• 28,996,009 seconds is equal to 47 weeks, 6 days, 14 hours, 26 minutes, 49 seconds.
• To count from 1 to 28,996,009 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 28996009 cubic inches would be around 25.6 feet tall.

Recreational maths with 28996009

• 28996009 backwards is 90069982
• The number of decimal digits it has is: 8
• The sum of 28996009's digits is 43
• More coming soon!