18001345

Names of 18001345

• Cardinal: 18001345 can be written as Eighteen million, one thousand, three hundred forty-five.

Scientific notation

• Scientific notation: 1.8001345 × 10⁷

Factors of 18001345

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 3600274

Divisors of 18001345

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5 3600269 18001345
• Sum of all divisors σ(n): 21601620
• Sum of proper divisors (its aliquot sum) s(n): 3600275
• 18001345 is a deficient number, because the sum of its proper divisors (3600275) is less than itself. Its deficiency is 14401070

Bases of 18001345

• Binary: 1000100101010110111000001₂
• Hexadecimal: 0x112ADC1
• Base-36: APTXD

Squares and roots of 18001345

• 18001345 squared (18001345²) is 324048421809025
• 18001345 cubed (18001345³) is 5833307437689783138625
• The square root of 18001345 is 4242.7991939285
• The cube root of 18001345 is 262.0806668455

Scales and comparisons

• 18,001,345 seconds is equal to 29 weeks, 5 days, 8 hours, 22 minutes, 25 seconds.
• To count from 1 to 18,001,345 would take you about forty-four 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 18001345 cubic inches would be around 21.8 feet tall.

Recreational maths with 18001345

• 18001345 backwards is 54310081
• The number of decimal digits it has is: 8
• The sum of 18001345's digits is 22
• More coming soon!