42078530

Names of 42078530

• Cardinal: 42078530 can be written as Forty-two million, seventy-eight thousand, five hundred thirty.

Scientific notation

• Scientific notation: 4.207853 × 10⁷

Factors of 42078530

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1202

Divisors of 42078530

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 5 10 13 26 65 130 431 751 862 1502 2155 3755 4310 5603 7510 9763 11206 19526 28015 48815 56030 97630 323681 647362 1618405 3236810 4207853 8415706 21039265 42078530
• Sum of all divisors σ(n): 81865728
• Sum of proper divisors (its aliquot sum) s(n): 39787198
• 42078530 is a deficient number, because the sum of its proper divisors (39787198) is less than itself. Its deficiency is 2291332

Bases of 42078530

• Binary: 10100000100001000101000010₂
• Hexadecimal: 0x2821142
• Base-36: P1W02

Squares and roots of 42078530

• 42078530 squared (42078530²) is 1770602686960900
• 42078530 cubed (42078530³) is 74504358281364839477000
• The square root of 42078530 is 6486.7965899973
• The cube root of 42078530 is 347.8191743441

Scales and comparisons

• 42,078,530 seconds is equal to 1 year, 17 weeks, 4 days, 28 minutes, 50 seconds.
• To count from 1 to 42,078,530 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 42078530 cubic inches would be around 29 feet tall.

Recreational maths with 42078530

• 42078530 backwards is 03587024
• The number of decimal digits it has is: 8
• The sum of 42078530's digits is 29
• More coming soon!