981148990

Names of 981148990

• Cardinal: 981148990 can be written as Nine hundred eighty-one million, one hundred forty-eight thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 9.8114899 × 10⁸

Factors of 981148990

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 98114906

Divisors of 981148990

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 98114899 196229798 490574495 981148990
• Sum of all divisors σ(n): 1766068200
• Sum of proper divisors (its aliquot sum) s(n): 784919210
• 981148990 is a deficient number, because the sum of its proper divisors (784919210) is less than itself. Its deficiency is 196229780

Bases of 981148990

• Binary: 111010011110110010010100111110₂
• Hexadecimal: 0x3A7B253E
• Base-36: G85FEM

Squares and roots of 981148990

• 981148990 squared (981148990²) is 962653340578020100
• 981148990 cubed (981148990³) is 944506352828250437314699000
• The square root of 981148990 is 31323.2978787355
• The cube root of 981148990 is 993.6764267093

Scales and comparisons

• 981,148,990 seconds is equal to 31 years, 10 weeks, 1 day, 21 hours, 23 minutes, 10 seconds.
• To count from 1 to 981,148,990 would take you about forty-six years!

  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 981148990 cubic inches would be around 82.8 feet tall.

Recreational maths with 981148990

• 981148990 backwards is 099841189
• The number of decimal digits it has is: 9
• The sum of 981148990's digits is 49
• More coming soon!