90000

Names of 90000

• Cardinal: 90000 can be written as Ninety thousand.

Scientific notation

• Scientific notation: 9 × 10⁴

Factors of 90000

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 10

Divisors of 90000

• Number of divisors d(n): 75
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 125 144 150 180 200 225 240 250 300 360 375 400 450 500 600 625 720 750 900 1000 1125 1200 1250 1500 1800 1875 2000 2250 2500 3000 3600 3750 4500 5000 5625 6000 7500 9000 10000 11250 15000 18000 22500 30000 45000 90000
• Sum of all divisors σ(n): 314743
• Sum of proper divisors (its aliquot sum) s(n): 224743
• 90000 is an abundant number, because the sum of its proper divisors (224743) is greater than itself. Its abundance is 134743

Bases of 90000

• Binary: 10101111110010000₂
• Hexadecimal: 0x15F90
• Base-36: 1XG0

Squares and roots of 90000

• 90000 squared (90000²) is 8100000000
• 90000 cubed (90000³) is 729000000000000
• 90000 is a perfect square number. Its square root is 300
• The cube root of 90000 is 44.8140474655

Scales and comparisons

• 90,000 seconds is equal to 1 day, 1 hour.
• To count from 1 to 90,000 would take you about .

  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 90000 cubic inches would be around 3.7 feet tall.

Recreational maths with 90000

• 90000 backwards is 00009
• 90000 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 90000's digits is 9
• More coming soon!