30749

Names of 30749

• Cardinal: 30749 can be written as Thirty thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 3.0749 × 10⁴

Factors of 30749

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 414

Divisors of 30749

• Number of divisors d(n): 4
• Complete list of divisors:
  1 97 317 30749
• Sum of all divisors σ(n): 31164
• Sum of proper divisors (its aliquot sum) s(n): 415
• 30749 is a deficient number, because the sum of its proper divisors (415) is less than itself. Its deficiency is 30334

Bases of 30749

• Binary: 111100000011101₂
• Hexadecimal: 0x781D
• Base-36: NQ5

Squares and roots of 30749

• 30749 squared (30749²) is 945501001
• 30749 cubed (30749³) is 29073210279749
• The square root of 30749 is 175.3539278145
• The cube root of 30749 is 31.3287931655

Scales and comparisons

• 30,749 seconds is equal to 8 hours, 32 minutes, 29 seconds.
• To count from 1 to 30,749 would take you about eight hours.

  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 30749 cubic inches would be around 2.6 feet tall.

Recreational maths with 30749

• 30749 backwards is 94703
• The number of decimal digits it has is: 5
• The sum of 30749's digits is 23
• More coming soon!