30105309

Names of 30105309

• Cardinal: 30105309 can be written as Thirty million, one hundred five thousand, three hundred nine.

Scientific notation

• Scientific notation: 3.0105309 × 10⁷

Factors of 30105309

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 757

Divisors of 30105309

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 13 31 37 39 93 111 403 481 673 1147 1209 1443 2019 3441 8749 14911 20863 24901 26247 44733 62589 74703 271219 323713 771931 813657 971139 2315793 10035103 30105309
• Sum of all divisors σ(n): 45896704
• Sum of proper divisors (its aliquot sum) s(n): 15791395
• 30105309 is a deficient number, because the sum of its proper divisors (15791395) is less than itself. Its deficiency is 14313914

Bases of 30105309

• Binary: 1110010110101111011011101₂
• Hexadecimal: 0x1CB5EDD
• Base-36: HX9EL

Squares and roots of 30105309

• 30105309 squared (30105309²) is 906329629985481
• 30105309 cubed (30105309³) is 27285333566568571018629
• The square root of 30105309 is 5486.8305058567
• The cube root of 30105309 is 311.0864032769

Scales and comparisons

• 30,105,309 seconds is equal to 49 weeks, 5 days, 10 hours, 35 minutes, 9 seconds.
• To count from 1 to 30,105,309 would take you about twenty-two 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 30105309 cubic inches would be around 25.9 feet tall.

Recreational maths with 30105309

• 30105309 backwards is 90350103
• The number of decimal digits it has is: 8
• The sum of 30105309's digits is 21
• More coming soon!