981221

Names of 981221

• Cardinal: 981221 can be written as Nine hundred eighty-one thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 9.81221 × 10⁵

Factors of 981221

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 981221

Divisors of 981221

• Number of divisors d(n): 2
• Complete list of divisors:
  1 981221
• Sum of all divisors σ(n): 981222
• Sum of proper divisors (its aliquot sum) s(n): 1
• 981221 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 981220

Bases of 981221

• Binary: 11101111100011100101₂
• Hexadecimal: 0xEF8E5
• Base-36: L145

Squares and roots of 981221

• 981221 squared (981221²) is 962794650841
• 981221 cubed (981221³) is 944714330092856861
• The square root of 981221 is 990.5659998203
• The cube root of 981221 is 99.3700735925

Scales and comparisons

• 981,221 seconds is equal to 1 week, 4 days, 8 hours, 33 minutes, 41 seconds.
• To count from 1 to 981,221 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 981221 cubic inches would be around 8.3 feet tall.

Recreational maths with 981221

• 981221 backwards is 122189
• The number of decimal digits it has is: 6
• The sum of 981221's digits is 23
• More coming soon!