42242978

Names of 42242978

• Cardinal: 42242978 can be written as Forty-two million, two hundred forty-two thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 4.2242978 × 10⁷

Factors of 42242978

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 205168

Divisors of 42242978

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 103 206 205063 410126 21121489 42242978
• Sum of all divisors σ(n): 63979968
• Sum of proper divisors (its aliquot sum) s(n): 21736990
• 42242978 is a deficient number, because the sum of its proper divisors (21736990) is less than itself. Its deficiency is 20505988

Bases of 42242978

• Binary: 10100001001001001110100010₂
• Hexadecimal: 0x28493A2
• Base-36: P5EW2

Squares and roots of 42242978

• 42242978 squared (42242978²) is 1784469190308484
• 42242978 cubed (42242978³) is 75381292747879102825352
• The square root of 42242978 is 6499.4598237085
• The cube root of 42242978 is 348.2716918669

Scales and comparisons

• 42,242,978 seconds is equal to 1 year, 17 weeks, 5 days, 22 hours, 9 minutes, 38 seconds.
• To count from 1 to 42,242,978 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 42242978 cubic inches would be around 29 feet tall.

Recreational maths with 42242978

• 42242978 backwards is 87924224
• The number of decimal digits it has is: 8
• The sum of 42242978's digits is 38
• More coming soon!