42540145

Names of 42540145

• Cardinal: 42540145 can be written as Forty-two million, five hundred forty thousand, one hundred forty-five.

Scientific notation

• Scientific notation: 4.2540145 × 10⁷

Factors of 42540145

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 447815

Divisors of 42540145

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 19 95 447791 2238955 8508029 42540145
• Sum of all divisors σ(n): 53735040
• Sum of proper divisors (its aliquot sum) s(n): 11194895
• 42540145 is a deficient number, because the sum of its proper divisors (11194895) is less than itself. Its deficiency is 31345250

Bases of 42540145

• Binary: 10100010010001110001110001₂
• Hexadecimal: 0x2891C71
• Base-36: PBS6P

Squares and roots of 42540145

• 42540145 squared (42540145²) is 1809663936621025
• 42540145 cubed (42540145³) is 76983366265129213548625
• The square root of 42540145 is 6522.2806594013
• The cube root of 42540145 is 349.0864474975

Scales and comparisons

• 42,540,145 seconds is equal to 1 year, 18 weeks, 2 days, 8 hours, 42 minutes, 25 seconds.
• To count from 1 to 42,540,145 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 42540145 cubic inches would be around 29.1 feet tall.

Recreational maths with 42540145

• 42540145 backwards is 54104524
• The number of decimal digits it has is: 8
• The sum of 42540145's digits is 25
• More coming soon!