42125981

Names of 42125981

• Cardinal: 42125981 can be written as Forty-two million, one hundred twenty-five thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 4.2125981 × 10⁷

Factors of 42125981

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 42125981

Divisors of 42125981

• Number of divisors d(n): 2
• Complete list of divisors:
  1 42125981
• Sum of all divisors σ(n): 42125982
• Sum of proper divisors (its aliquot sum) s(n): 1
• 42125981 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 42125980

Bases of 42125981

• Binary: 10100000101100101010011101₂
• Hexadecimal: 0x282CA9D
• Base-36: P2WM5

Squares and roots of 42125981

• 42125981 squared (42125981²) is 1774598275212361
• 42125981 cubed (42125981³) is 74756693224228690451141
• The square root of 42125981 is 6490.4530658497
• The cube root of 42125981 is 347.9498678171

Scales and comparisons

• 42,125,981 seconds is equal to 1 year, 17 weeks, 4 days, 13 hours, 39 minutes, 41 seconds.
• To count from 1 to 42,125,981 would take you about two 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 42125981 cubic inches would be around 29 feet tall.

Recreational maths with 42125981

• 42125981 backwards is 18952124
• The number of decimal digits it has is: 8
• The sum of 42125981's digits is 32
• More coming soon!