30679890

Names of 30679890

• Cardinal: 30679890 can be written as Thirty million, six hundred seventy-nine thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 3.067989 × 10⁷

Factors of 30679890

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 24994

Divisors of 30679890

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 5 6 10 15 30 41 82 123 205 246 410 615 1230 24943 49886 74829 124715 149658 249430 374145 748290 1022663 2045326 3067989 5113315 6135978 10226630 15339945 30679890
• Sum of all divisors σ(n): 75430656
• Sum of proper divisors (its aliquot sum) s(n): 44750766
• 30679890 is an abundant number, because the sum of its proper divisors (44750766) is greater than itself. Its abundance is 14070876

Bases of 30679890

• Binary: 1110101000010001101010010₂
• Hexadecimal: 0x1D42352
• Base-36: I9KR6

Squares and roots of 30679890

• 30679890 squared (30679890²) is 941255650412100
• 30679890 cubed (30679890³) is 28877619816521682669000
• The square root of 30679890 is 5538.9430399671
• The cube root of 30679890 is 313.0530452071

Scales and comparisons

• 30,679,890 seconds is equal to 50 weeks, 5 days, 2 hours, 11 minutes, 30 seconds.
• To count from 1 to 30,679,890 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 30679890 cubic inches would be around 26.1 feet tall.

Recreational maths with 30679890

• 30679890 backwards is 09897603
• The number of decimal digits it has is: 8
• The sum of 30679890's digits is 42
• More coming soon!