18055145

Names of 18055145

• Cardinal: 18055145 can be written as Eighteen million, fifty-five thousand, one hundred forty-five.

Scientific notation

• Scientific notation: 1.8055145 × 10⁷

Factors of 18055145

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 21051

Divisors of 18055145

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 173 865 20873 104365 3611029 18055145
• Sum of all divisors σ(n): 21792456
• Sum of proper divisors (its aliquot sum) s(n): 3737311
• 18055145 is a deficient number, because the sum of its proper divisors (3737311) is less than itself. Its deficiency is 14317834

Bases of 18055145

• Binary: 1000100110111111111101001₂
• Hexadecimal: 0x1137FE9
• Base-36: AQZFT

Squares and roots of 18055145

• 18055145 squared (18055145²) is 325988260971025
• 18055145 cubed (18055145³) is 5885765320129697173625
• The square root of 18055145 is 4249.1346177781
• The cube root of 18055145 is 262.3414976611

Scales and comparisons

• 18,055,145 seconds is equal to 29 weeks, 5 days, 23 hours, 19 minutes, 5 seconds.
• To count from 1 to 18,055,145 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 18055145 cubic inches would be around 21.9 feet tall.

Recreational maths with 18055145

• 18055145 backwards is 54155081
• The number of decimal digits it has is: 8
• The sum of 18055145's digits is 29
• More coming soon!