42905431

Names of 42905431

• Cardinal: 42905431 can be written as Forty-two million, nine hundred five thousand, four hundred thirty-one.

Scientific notation

• Scientific notation: 4.2905431 × 10⁷

Factors of 42905431

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 273440

Divisors of 42905431

• Number of divisors d(n): 4
• Complete list of divisors:
  1 157 273283 42905431
• Sum of all divisors σ(n): 43178872
• Sum of proper divisors (its aliquot sum) s(n): 273441
• 42905431 is a deficient number, because the sum of its proper divisors (273441) is less than itself. Its deficiency is 42631990

Bases of 42905431

• Binary: 10100011101010111101010111₂
• Hexadecimal: 0x28EAF57
• Base-36: PJM1J

Squares and roots of 42905431

• 42905431 squared (42905431²) is 1840876009295761
• 42905431 cubed (42905431³) is 78983578596394632177991
• The square root of 42905431 is 6550.2237366367
• The cube root of 42905431 is 350.0827858593

Scales and comparisons

• 42,905,431 seconds is equal to 1 year, 18 weeks, 6 days, 14 hours, 10 minutes, 31 seconds.
• To count from 1 to 42,905,431 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 42905431 cubic inches would be around 29.2 feet tall.

Recreational maths with 42905431

• 42905431 backwards is 13450924
• The number of decimal digits it has is: 8
• The sum of 42905431's digits is 28
• More coming soon!