99999

Names of 99999

• Cardinal: 99999 can be written as Ninety-nine thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 9.9999 × 10⁴

Factors of 99999

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 315

Divisors of 99999

• Number of divisors d(n): 12
• Complete list of divisors:
  1 3 9 41 123 271 369 813 2439 11111 33333 99999
• Sum of all divisors σ(n): 148512
• Sum of proper divisors (its aliquot sum) s(n): 48513
• 99999 is a deficient number, because the sum of its proper divisors (48513) is less than itself. Its deficiency is 51486

Bases of 99999

• Binary: 11000011010011111₂
• Hexadecimal: 0x1869F
• Base-36: 255R

Squares and roots of 99999

• 99999 squared (99999²) is 9999800001
• 99999 cubed (99999³) is 999970000299999
• The square root of 99999 is 316.2261848741
• The cube root of 99999 is 46.4157336159

Scales and comparisons

• 99,999 seconds is equal to 1 day, 3 hours, 46 minutes, 39 seconds.
• To count from 1 to 99,999 would take you about three hours.

  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 99999 cubic inches would be around 3.9 feet tall.

Recreational maths with 99999

• 99999 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 99999's digits is 45
• More coming soon!