18075021

Names of 18075021

• Cardinal: 18075021 can be written as Eighteen million, seventy-five thousand and twenty-one.

Scientific notation

• Scientific notation: 1.8075021 × 10⁷

Factors of 18075021

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 47571

Divisors of 18075021

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 127 381 47441 142323 6025007 18075021
• Sum of all divisors σ(n): 24290304
• Sum of proper divisors (its aliquot sum) s(n): 6215283
• 18075021 is a deficient number, because the sum of its proper divisors (6215283) is less than itself. Its deficiency is 11859738

Bases of 18075021

• Binary: 1000100111100110110001101₂
• Hexadecimal: 0x113CD8D
• Base-36: ARERX

Squares and roots of 18075021

• 18075021 squared (18075021²) is 326706384150441
• 18075021 cubed (18075021³) is 5905224754353288234261
• The square root of 18075021 is 4251.4728036293
• The cube root of 18075021 is 262.4377285395

Scales and comparisons

• 18,075,021 seconds is equal to 29 weeks, 6 days, 4 hours, 50 minutes, 21 seconds.
• To count from 1 to 18,075,021 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 18075021 cubic inches would be around 21.9 feet tall.

Recreational maths with 18075021

• 18075021 backwards is 12057081
• The number of decimal digits it has is: 8
• The sum of 18075021's digits is 24
• More coming soon!