18023491

Names of 18023491

• Cardinal: 18023491 can be written as Eighteen million, twenty-three thousand, four hundred ninety-one.

Scientific notation

• Scientific notation: 1.8023491 × 10⁷

Factors of 18023491

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 18023491

Divisors of 18023491

• Number of divisors d(n): 2
• Complete list of divisors:
  1 18023491
• Sum of all divisors σ(n): 18023492
• Sum of proper divisors (its aliquot sum) s(n): 1
• 18023491 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 18023490

Bases of 18023491

• Binary: 1000100110000010001000011₂
• Hexadecimal: 0x1130443
• Base-36: AQB0J

Squares and roots of 18023491

• 18023491 squared (18023491²) is 324846227827081
• 18023491 cubed (18023491³) is 5854863063625343959771
• The square root of 18023491 is 4245.4082253655
• The cube root of 18023491 is 262.1880969655

Scales and comparisons

• 18,023,491 seconds is equal to 29 weeks, 5 days, 14 hours, 31 minutes, 31 seconds.
• To count from 1 to 18,023,491 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 18023491 cubic inches would be around 21.8 feet tall.

Recreational maths with 18023491

• 18023491 backwards is 19432081
• The number of decimal digits it has is: 8
• The sum of 18023491's digits is 28
• More coming soon!