42947917

Names of 42947917

• Cardinal: 42947917 can be written as Forty-two million, nine hundred forty-seven thousand, nine hundred seventeen.

Scientific notation

• Scientific notation: 4.2947917 × 10⁷

Factors of 42947917

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 42947917

Divisors of 42947917

• Number of divisors d(n): 2
• Complete list of divisors:
  1 42947917
• Sum of all divisors σ(n): 42947918
• Sum of proper divisors (its aliquot sum) s(n): 1
• 42947917 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 42947916

Bases of 42947917

• Binary: 10100011110101010101001101₂
• Hexadecimal: 0x28F554D
• Base-36: PKITP

Squares and roots of 42947917

• 42947917 squared (42947917²) is 1844523574638889
• 42947917 cubed (42947917³) is 79218445388134309744213
• The square root of 42947917 is 6553.4660295145
• The cube root of 42947917 is 350.1983012317

Scales and comparisons

• 42,947,917 seconds is equal to 1 year, 19 weeks, 1 hour, 58 minutes, 37 seconds.
• To count from 1 to 42,947,917 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 42947917 cubic inches would be around 29.2 feet tall.

Recreational maths with 42947917

• 42947917 backwards is 71974924
• The number of decimal digits it has is: 8
• The sum of 42947917's digits is 43
• More coming soon!