3998985

Names of 3998985

• Cardinal: 3998985 can be written as Three million, nine hundred ninety-eight thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 3.998985 × 10⁶

Factors of 3998985

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 266607

Divisors of 3998985

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 266599 799797 1332995 3998985
• Sum of all divisors σ(n): 6398400
• Sum of proper divisors (its aliquot sum) s(n): 2399415
• 3998985 is a deficient number, because the sum of its proper divisors (2399415) is less than itself. Its deficiency is 1599570

Bases of 3998985

• Binary: 1111010000010100001001₂
• Hexadecimal: 0x3D0509
• Base-36: 2DPMX

Squares and roots of 3998985

• 3998985 squared (3998985²) is 15991881030225
• 3998985 cubed (3998985³) is 63951292361654321625
• The square root of 3998985 is 1999.7462339007
• The cube root of 3998985 is 158.7266772937

Scales and comparisons

• 3,998,985 seconds is equal to 6 weeks, 4 days, 6 hours, 49 minutes, 45 seconds.
• To count from 1 to 3,998,985 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 3998985 cubic inches would be around 13.2 feet tall.

Recreational maths with 3998985

• 3998985 backwards is 5898993
• The number of decimal digits it has is: 7
• The sum of 3998985's digits is 51
• More coming soon!