30745729

Names of 30745729

• Cardinal: 30745729 can be written as Thirty million, seven hundred forty-five thousand, seven hundred twenty-nine.

Scientific notation

• Scientific notation: 3.0745729 × 10⁷

Factors of 30745729

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 6375

Divisors of 30745729

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 787 5509 5581 39067 4392247 30745729
• Sum of all divisors σ(n): 35188928
• Sum of proper divisors (its aliquot sum) s(n): 4443199
• 30745729 is a deficient number, because the sum of its proper divisors (4443199) is less than itself. Its deficiency is 26302530

Bases of 30745729

• Binary: 1110101010010010010000001₂
• Hexadecimal: 0x1D52481
• Base-36: IAZK1

Squares and roots of 30745729

• 30745729 squared (30745729²) is 945299851741441
• 30745729 cubed (30745729³) is 29063933065382523055489
• The square root of 30745729 is 5544.8831367305
• The cube root of 30745729 is 313.2768223371

Scales and comparisons

• 30,745,729 seconds is equal to 50 weeks, 5 days, 20 hours, 28 minutes, 49 seconds.
• To count from 1 to 30,745,729 would take you about twenty-four weeks!

  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 30745729 cubic inches would be around 26.1 feet tall.

Recreational maths with 30745729

• 30745729 backwards is 92754703
• The number of decimal digits it has is: 8
• The sum of 30745729's digits is 37
• More coming soon!