42725281

Names of 42725281

• Cardinal: 42725281 can be written as Forty-two million, seven hundred twenty-five thousand, two hundred eighty-one.

Scientific notation

• Scientific notation: 4.2725281 × 10⁷

Factors of 42725281

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 2248718

Divisors of 42725281

• Number of divisors d(n): 4
• Complete list of divisors:
  1 19 2248699 42725281
• Sum of all divisors σ(n): 44974000
• Sum of proper divisors (its aliquot sum) s(n): 2248719
• 42725281 is a deficient number, because the sum of its proper divisors (2248719) is less than itself. Its deficiency is 40476562

Bases of 42725281

• Binary: 10100010111110111110100001₂
• Hexadecimal: 0x28BEFA1
• Base-36: PFR1D

Squares and roots of 42725281

• 42725281 squared (42725281²) is 1825449636528961
• 42725281 cubed (42725281³) is 77992848672047723363041
• The square root of 42725281 is 6536.4578328021
• The cube root of 42725281 is 349.5921262277

Scales and comparisons

• 42,725,281 seconds is equal to 1 year, 18 weeks, 4 days, 12 hours, 8 minutes, 1 second.
• To count from 1 to 42,725,281 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 42725281 cubic inches would be around 29.1 feet tall.

Recreational maths with 42725281

• 42725281 backwards is 18252724
• The number of decimal digits it has is: 8
• The sum of 42725281's digits is 31
• More coming soon!