491930749

Names of 491930749

• Cardinal: 491930749 can be written as Four hundred ninety-one million, nine hundred thirty thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 4.91930749 × 10⁸

Factors of 491930749

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 491930749

Divisors of 491930749

• Number of divisors d(n): 2
• Complete list of divisors:
  1 491930749
• Sum of all divisors σ(n): 491930750
• Sum of proper divisors (its aliquot sum) s(n): 1
• 491930749 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 491930748

Bases of 491930749

• Binary: 11101010100100100010001111101₂
• Hexadecimal: 0x1D52447D
• Base-36: 84VS71

Squares and roots of 491930749

• 491930749 squared (491930749²) is 241995861811701001
• 491930749 cubed (491930749³) is 119045205555930570385979749
• The square root of 491930749 is 22179.5119197875
• The cube root of 491930749 is 789.4076363763

Scales and comparisons

• 491,930,749 seconds is equal to 15 years, 33 weeks, 2 days, 15 hours, 25 minutes, 49 seconds.
• To count from 1 to 491,930,749 would take you about twenty-three years!

  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 491930749 cubic inches would be around 65.8 feet tall.

Recreational maths with 491930749

• 491930749 backwards is 947039194
• The number of decimal digits it has is: 9
• The sum of 491930749's digits is 46
• More coming soon!