1998181

Names of 1998181

• Cardinal: 1998181 can be written as One million, nine hundred ninety-eight thousand, one hundred eighty-one.

Scientific notation

• Scientific notation: 1.998181 × 10⁶

Factors of 1998181

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 1998181

Divisors of 1998181

• Number of divisors d(n): 2
• Complete list of divisors:
  1 1998181
• Sum of all divisors σ(n): 1998182
• Sum of proper divisors (its aliquot sum) s(n): 1
• 1998181 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 1998180

Bases of 1998181

• Binary: 111100111110101100101₂
• Hexadecimal: 0x1E7D65
• Base-36: 16TT1

Squares and roots of 1998181

• 1998181 squared (1998181²) is 3992727308761
• 1998181 cubed (1998181³) is 7978191846547363741
• The square root of 1998181 is 1413.5703024611
• The cube root of 1998181 is 125.9538967971

Scales and comparisons

• 1,998,181 seconds is equal to 3 weeks, 2 days, 3 hours, 3 minutes, 1 second.
• To count from 1 to 1,998,181 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 1998181 cubic inches would be around 10.5 feet tall.

Recreational maths with 1998181

• 1998181 backwards is 1818991
• The number of decimal digits it has is: 7
• The sum of 1998181's digits is 37
• More coming soon!