42509139

Names of 42509139

• Cardinal: 42509139 can be written as Forty-two million, five hundred nine thousand, one hundred thirty-nine.

Scientific notation

• Scientific notation: 4.2509139 × 10⁷

Factors of 42509139

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 7569

Divisors of 42509139

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 3407 4159 10221 12477 14169713 42509139
• Sum of all divisors σ(n): 56709120
• Sum of proper divisors (its aliquot sum) s(n): 14199981
• 42509139 is a deficient number, because the sum of its proper divisors (14199981) is less than itself. Its deficiency is 28309158

Bases of 42509139

• Binary: 10100010001010001101010011₂
• Hexadecimal: 0x288A353
• Base-36: PB49F

Squares and roots of 42509139

• 42509139 squared (42509139²) is 1807026898521321
• 42509139 cubed (42509139³) is 76815157605981728852619
• The square root of 42509139 is 6519.9032968289
• The cube root of 42509139 is 349.0016146481

Scales and comparisons

• 42,509,139 seconds is equal to 1 year, 18 weeks, 2 days, 5 minutes, 39 seconds.
• To count from 1 to 42,509,139 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 42509139 cubic inches would be around 29.1 feet tall.

Recreational maths with 42509139

• 42509139 backwards is 93190524
• The number of decimal digits it has is: 8
• The sum of 42509139's digits is 33
• More coming soon!