42581989

Names of 42581989

• Cardinal: 42581989 can be written as Forty-two million, five hundred eighty-one thousand, nine hundred eighty-nine.

Scientific notation

• Scientific notation: 4.2581989 × 10⁷

Factors of 42581989

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 16166

Divisors of 42581989

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3313 12853 42581989
• Sum of all divisors σ(n): 42598156
• Sum of proper divisors (its aliquot sum) s(n): 16167
• 42581989 is a deficient number, because the sum of its proper divisors (16167) is less than itself. Its deficiency is 42565822

Bases of 42581989

• Binary: 10100010011011111111100101₂
• Hexadecimal: 0x289BFE5
• Base-36: PCOH1

Squares and roots of 42581989

• 42581989 squared (42581989²) is 1813225787196121
• 42581989 cubed (42581989³) is 77210760524901565264669
• The square root of 42581989 is 6525.4876446133
• The cube root of 42581989 is 349.2008679393

Scales and comparisons

• 42,581,989 seconds is equal to 1 year, 18 weeks, 2 days, 20 hours, 19 minutes, 49 seconds.
• To count from 1 to 42,581,989 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 42581989 cubic inches would be around 29.1 feet tall.

Recreational maths with 42581989

• 42581989 backwards is 98918524
• The number of decimal digits it has is: 8
• The sum of 42581989's digits is 46
• More coming soon!