39749642

Names of 39749642

• Cardinal: 39749642 can be written as Thirty-nine million, seven hundred forty-nine thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 3.9749642 × 10⁷

Factors of 39749642

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 19874823

Divisors of 39749642

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 19874821 39749642
• Sum of all divisors σ(n): 59624466
• Sum of proper divisors (its aliquot sum) s(n): 19874824
• 39749642 is a deficient number, because the sum of its proper divisors (19874824) is less than itself. Its deficiency is 19874818

Bases of 39749642

• Binary: 10010111101000100000001010₂
• Hexadecimal: 0x25E880A
• Base-36: NNZ0Q

Squares and roots of 39749642

• 39749642 squared (39749642²) is 1580034039128164
• 39749642 cubed (39749642³) is 62805787403158511117288
• The square root of 39749642 is 6304.7317151485
• The cube root of 39749642 is 341.2801852657

Scales and comparisons

• 39,749,642 seconds is equal to 1 year, 13 weeks, 5 days, 1 hour, 34 minutes, 2 seconds.
• To count from 1 to 39,749,642 would take you about forty-six 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 39749642 cubic inches would be around 28.4 feet tall.

Recreational maths with 39749642

• 39749642 backwards is 24694793
• The number of decimal digits it has is: 8
• The sum of 39749642's digits is 44
• More coming soon!