1800081

Names of 1800081

• Cardinal: 1800081 can be written as One million, eight hundred thousand and eighty-one.

Scientific notation

• Scientific notation: 1.800081 × 10⁶

Factors of 1800081

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 200012

Divisors of 1800081

• Number of divisors d(n): 6
• Complete list of divisors:
  1 3 9 200009 600027 1800081
• Sum of all divisors σ(n): 2600130
• Sum of proper divisors (its aliquot sum) s(n): 800049
• 1800081 is a deficient number, because the sum of its proper divisors (800049) is less than itself. Its deficiency is 1000032

Bases of 1800081

• Binary: 110110111011110010001₂
• Hexadecimal: 0x1B7791
• Base-36: 12KY9

Squares and roots of 1800081

• 1800081 squared (1800081²) is 3240291606561
• 1800081 cubed (1800081³) is 5832787355429931441
• The square root of 1800081 is 1341.6709730779
• The cube root of 1800081 is 121.6458645447

Scales and comparisons

• 1,800,081 seconds is equal to 2 weeks, 6 days, 20 hours, 1 minute, 21 seconds.
• To count from 1 to 1,800,081 would take you about four 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 1800081 cubic inches would be around 10.1 feet tall.

Recreational maths with 1800081

• 1800081 is the same when its digits are reversed! That makes it a palindromic number.
• The number of decimal digits it has is: 7
• The sum of 1800081's digits is 18
• More coming soon!