168981121

Names of 168981121

• Cardinal: 168981121 can be written as One hundred sixty-eight million, nine hundred eighty-one thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 1.68981121 × 10⁸

Factors of 168981121

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 21743

Divisors of 168981121

• Number of divisors d(n): 8
• Complete list of divisors:
  1 47 167 7849 21529 1011863 3595343 168981121
• Sum of all divisors σ(n): 173617920
• Sum of proper divisors (its aliquot sum) s(n): 4636799
• 168981121 is a deficient number, because the sum of its proper divisors (4636799) is less than itself. Its deficiency is 164344322

Bases of 168981121

• Binary: 1010000100100111001010000001₂
• Hexadecimal: 0xA127281
• Base-36: 2SLUO1

Squares and roots of 168981121

• 168981121 squared (168981121²) is 28554619254416641
• 168981121 cubed (168981121³) is 4825191571339508197234561
• The square root of 168981121 is 12999.2738643357
• The cube root of 168981121 is 552.8568932759

Scales and comparisons

• 168,981,121 seconds is equal to 5 years, 19 weeks, 2 days, 19 hours, 12 minutes, 1 second.
• To count from 1 to 168,981,121 would take you about eight 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 168981121 cubic inches would be around 46.1 feet tall.

Recreational maths with 168981121

• 168981121 backwards is 121189861
• The number of decimal digits it has is: 9
• The sum of 168981121's digits is 37
• More coming soon!