381999

Names of 381999

• Cardinal: 381999 can be written as Three hundred eighty-one thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 3.81999 × 10⁵

Factors of 381999

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 797

Divisors of 381999

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 223 571 669 1713 127333 381999
• Sum of all divisors σ(n): 512512
• Sum of proper divisors (its aliquot sum) s(n): 130513
• 381999 is a deficient number, because the sum of its proper divisors (130513) is less than itself. Its deficiency is 251486

Bases of 381999

• Binary: 1011101010000101111₂
• Hexadecimal: 0x5D42F
• Base-36: 86R3

Squares and roots of 381999

• 381999 squared (381999²) is 145923236001
• 381999 cubed (381999³) is 55742530229145999
• The square root of 381999 is 618.0606766329
• The cube root of 381999 is 72.5583517545

Scales and comparisons

• 381,999 seconds is equal to 4 days, 10 hours, 6 minutes, 39 seconds.
• To count from 1 to 381,999 would take you about four days.

  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 381999 cubic inches would be around 6 feet tall.

Recreational maths with 381999

• 381999 backwards is 999183
• The number of decimal digits it has is: 6
• The sum of 381999's digits is 39
• More coming soon!