42929138

Names of 42929138

• Cardinal: 42929138 can be written as Forty-two million, nine hundred twenty-nine thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 4.2929138 × 10⁷

Factors of 42929138

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 19697

Divisors of 42929138

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 7 14 157 314 1099 2198 19531 39062 136717 273434 3066367 6132734 21464569 42929138
• Sum of all divisors σ(n): 74065344
• Sum of proper divisors (its aliquot sum) s(n): 31136206
• 42929138 is a deficient number, because the sum of its proper divisors (31136206) is less than itself. Its deficiency is 11792932

Bases of 42929138

• Binary: 10100011110000101111110010₂
• Hexadecimal: 0x28F0BF2
• Base-36: PK4C2

Squares and roots of 42929138

• 42929138 squared (42929138²) is 1842910889423044
• 42929138 cubed (42929138³) is 79114575893744596256072
• The square root of 42929138 is 6552.0331195745
• The cube root of 42929138 is 350.1472523249

Scales and comparisons

• 42,929,138 seconds is equal to 1 year, 18 weeks, 6 days, 20 hours, 45 minutes, 38 seconds.
• To count from 1 to 42,929,138 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 42929138 cubic inches would be around 29.2 feet tall.

Recreational maths with 42929138

• 42929138 backwards is 83192924
• The number of decimal digits it has is: 8
• The sum of 42929138's digits is 38
• More coming soon!