90009

Names of 90009

• Cardinal: 90009 can be written as Ninety thousand and nine.

Scientific notation

• Scientific notation: 9.0009 × 10⁴

Factors of 90009

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 213

Divisors of 90009

• Number of divisors d(n): 12
• Complete list of divisors:
  1 3 9 73 137 219 411 657 1233 10001 30003 90009
• Sum of all divisors σ(n): 132756
• Sum of proper divisors (its aliquot sum) s(n): 42747
• 90009 is a deficient number, because the sum of its proper divisors (42747) is less than itself. Its deficiency is 47262

Bases of 90009

• Binary: 10101111110011001₂
• Hexadecimal: 0x15F99
• Base-36: 1XG9

Squares and roots of 90009

• 90009 squared (90009²) is 8101620081
• 90009 cubed (90009³) is 729218721870729
• The square root of 90009 is 300.0149996251
• The cube root of 90009 is 44.8155412173

Scales and comparisons

• 90,009 seconds is equal to 1 day, 1 hour, 9 seconds.
• To count from 1 to 90,009 would take you about nine seconds.

  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 90009 cubic inches would be around 3.7 feet tall.

Recreational maths with 90009

• 90009 is the same when its digits are reversed! That makes it a palindromic number.
• The number of decimal digits it has is: 5
• The sum of 90009's digits is 18
• More coming soon!