3986409

Names of 3986409

• Cardinal: 3986409 can be written as Three million, nine hundred eighty-six thousand, four hundred nine.

Scientific notation

• Scientific notation: 3.986409 × 10⁶

Factors of 3986409

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 229

Divisors of 3986409

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 7 19 21 57 97 103 133 291 309 399 679 721 1843 1957 2037 2163 5529 5871 9991 12901 13699 29973 38703 41097 69937 189829 209811 569487 1328803 3986409
• Sum of all divisors σ(n): 6522880
• Sum of proper divisors (its aliquot sum) s(n): 2536471
• 3986409 is a deficient number, because the sum of its proper divisors (2536471) is less than itself. Its deficiency is 1449938

Bases of 3986409

• Binary: 1111001101001111101001₂
• Hexadecimal: 0x3CD3E9
• Base-36: 2DFXL

Squares and roots of 3986409

• 3986409 squared (3986409²) is 15891456715281
• 3986409 cubed (3986409³) is 63349846072906615929
• The square root of 3986409 is 1996.5993589101
• The cube root of 3986409 is 158.5601147911

Scales and comparisons

• 3,986,409 seconds is equal to 6 weeks, 4 days, 3 hours, 20 minutes, 9 seconds.
• To count from 1 to 3,986,409 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 3986409 cubic inches would be around 13.2 feet tall.

Recreational maths with 3986409

• 3986409 backwards is 9046893
• The number of decimal digits it has is: 7
• The sum of 3986409's digits is 39
• More coming soon!