42909421

Names of 42909421

• Cardinal: 42909421 can be written as Forty-two million, nine hundred nine thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 4.2909421 × 10⁷

Factors of 42909421

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4235

Divisors of 42909421

• Number of divisors d(n): 8
• Complete list of divisors:
  1 23 503 3709 11569 85307 1865627 42909421
• Sum of all divisors σ(n): 44876160
• Sum of proper divisors (its aliquot sum) s(n): 1966739
• 42909421 is a deficient number, because the sum of its proper divisors (1966739) is less than itself. Its deficiency is 40942682

Bases of 42909421

• Binary: 10100011101011111011101101₂
• Hexadecimal: 0x28EBEED
• Base-36: PJP4D

Squares and roots of 42909421

• 42909421 squared (42909421²) is 1841218410555241
• 42909421 cubed (42909421³) is 79005615931465679825461
• The square root of 42909421 is 6550.5282993053
• The cube root of 42909421 is 350.0936375315

Scales and comparisons

• 42,909,421 seconds is equal to 1 year, 18 weeks, 6 days, 15 hours, 17 minutes, 1 second.
• To count from 1 to 42,909,421 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 42909421 cubic inches would be around 29.2 feet tall.

Recreational maths with 42909421

• 42909421 backwards is 12490924
• The number of decimal digits it has is: 8
• The sum of 42909421's digits is 31
• More coming soon!