30828991

Names of 30828991

• Cardinal: 30828991 can be written as Thirty million, eight hundred twenty-eight thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 3.0828991 × 10⁷

Factors of 30828991

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1433

Divisors of 30828991

• Number of divisors d(n): 8
• Complete list of divisors:
  1 157 179 1097 28103 172229 196363 30828991
• Sum of all divisors σ(n): 31227120
• Sum of proper divisors (its aliquot sum) s(n): 398129
• 30828991 is a deficient number, because the sum of its proper divisors (398129) is less than itself. Its deficiency is 30430862

Bases of 30828991

• Binary: 1110101100110100110111111₂
• Hexadecimal: 0x1D669BF
• Base-36: ICRSV

Squares and roots of 30828991

• 30828991 squared (30828991²) is 950426686078081
• 30828991 cubed (30828991³) is 29300695751260984446271
• The square root of 30828991 is 5552.3860636667
• The cube root of 30828991 is 313.5593607043

Scales and comparisons

• 30,828,991 seconds is equal to 50 weeks, 6 days, 19 hours, 36 minutes, 31 seconds.
• To count from 1 to 30,828,991 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 30828991 cubic inches would be around 26.1 feet tall.

Recreational maths with 30828991

• 30828991 backwards is 19982803
• The number of decimal digits it has is: 8
• The sum of 30828991's digits is 40
• More coming soon!