42491561

Names of 42491561

• Cardinal: 42491561 can be written as Forty-two million, four hundred ninety-one thousand, five hundred sixty-one.

Scientific notation

• Scientific notation: 4.2491561 × 10⁷

Factors of 42491561

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 6070230

Divisors of 42491561

• Number of divisors d(n): 4
• Complete list of divisors:
  1 7 6070223 42491561
• Sum of all divisors σ(n): 48561792
• Sum of proper divisors (its aliquot sum) s(n): 6070231
• 42491561 is a deficient number, because the sum of its proper divisors (6070231) is less than itself. Its deficiency is 36421330

Bases of 42491561

• Binary: 10100010000101111010101001₂
• Hexadecimal: 0x2885EA9
• Base-36: PAQP5

Squares and roots of 42491561

• 42491561 squared (42491561²) is 1805532756216721
• 42491561 cubed (42491561³) is 76719905248280929591481
• The square root of 42491561 is 6518.5551313155
• The cube root of 42491561 is 348.9535026709

Scales and comparisons

• 42,491,561 seconds is equal to 1 year, 18 weeks, 1 day, 19 hours, 12 minutes, 41 seconds.
• To count from 1 to 42,491,561 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 42491561 cubic inches would be around 29.1 feet tall.

Recreational maths with 42491561

• 42491561 backwards is 16519424
• The number of decimal digits it has is: 8
• The sum of 42491561's digits is 32
• More coming soon!