18140431

Names of 18140431

• Cardinal: 18140431 can be written as Eighteen million, one hundred forty thousand, four hundred thirty-one.

Scientific notation

• Scientific notation: 1.8140431 × 10⁷

Factors of 18140431

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 18140431

Divisors of 18140431

• Number of divisors d(n): 2
• Complete list of divisors:
  1 18140431
• Sum of all divisors σ(n): 18140432
• Sum of proper divisors (its aliquot sum) s(n): 1
• 18140431 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 18140430

Bases of 18140431

• Binary: 1000101001100110100001111₂
• Hexadecimal: 0x114CD0F
• Base-36: AST8V

Squares and roots of 18140431

• 18140431 squared (18140431²) is 329075236865761
• 18140431 cubed (18140431³) is 5969566628171993682991
• The square root of 18140431 is 4259.1584849593
• The cube root of 18140431 is 262.7539178721

Scales and comparisons

• 18,140,431 seconds is equal to 29 weeks, 6 days, 23 hours, 31 seconds.
• To count from 1 to 18,140,431 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 18140431 cubic inches would be around 21.9 feet tall.

Recreational maths with 18140431

• 18140431 backwards is 13404181
• The number of decimal digits it has is: 8
• The sum of 18140431's digits is 22
• More coming soon!