3997729

Names of 3997729

• Cardinal: 3997729 can be written as Three million, nine hundred ninety-seven thousand, seven hundred twenty-nine.

Scientific notation

• Scientific notation: 3.997729 × 10⁶

Factors of 3997729

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 128990

Divisors of 3997729

• Number of divisors d(n): 4
• Complete list of divisors:
  1 31 128959 3997729
• Sum of all divisors σ(n): 4126720
• Sum of proper divisors (its aliquot sum) s(n): 128991
• 3997729 is a deficient number, because the sum of its proper divisors (128991) is less than itself. Its deficiency is 3868738

Bases of 3997729

• Binary: 1111010000000000100001₂
• Hexadecimal: 0x3D0021
• Base-36: 2DOO1

Squares and roots of 3997729

• 3997729 squared (3997729²) is 15981837157441
• 3997729 cubed (3997729³) is 63891053877579451489
• The square root of 3997729 is 1999.4321693921
• The cube root of 3997729 is 158.7100579447

Scales and comparisons

• 3,997,729 seconds is equal to 6 weeks, 4 days, 6 hours, 28 minutes, 49 seconds.
• To count from 1 to 3,997,729 would take you about nine 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 3997729 cubic inches would be around 13.2 feet tall.

Recreational maths with 3997729

• 3997729 backwards is 9277993
• The number of decimal digits it has is: 7
• The sum of 3997729's digits is 46
• More coming soon!