3947842

Names of 3947842

• Cardinal: 3947842 can be written as Three million, nine hundred forty-seven thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 3.947842 × 10⁶

Factors of 3947842

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 116132

Divisors of 3947842

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 17 34 116113 232226 1973921 3947842
• Sum of all divisors σ(n): 6270156
• Sum of proper divisors (its aliquot sum) s(n): 2322314
• 3947842 is a deficient number, because the sum of its proper divisors (2322314) is less than itself. Its deficiency is 1625528

Bases of 3947842

• Binary: 1111000011110101000010₂
• Hexadecimal: 0x3C3D42
• Base-36: 2CM6A

Squares and roots of 3947842

• 3947842 squared (3947842²) is 15585456456964
• 3947842 cubed (3947842³) is 61528919589973671688
• The square root of 3947842 is 1986.9177134447
• The cube root of 3947842 is 158.0471204863

Scales and comparisons

• 3,947,842 seconds is equal to 6 weeks, 3 days, 16 hours, 37 minutes, 22 seconds.
• To count from 1 to 3,947,842 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 3947842 cubic inches would be around 13.2 feet tall.

Recreational maths with 3947842

• 3947842 backwards is 2487493
• The number of decimal digits it has is: 7
• The sum of 3947842's digits is 37
• More coming soon!