30985491

Names of 30985491

• Cardinal: 30985491 can be written as Thirty million, nine hundred eighty-five thousand, four hundred ninety-one.

Scientific notation

• Scientific notation: 3.0985491 × 10⁷

Factors of 30985491

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 10561

Divisors of 30985491

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 1091 3273 9467 28401 10328497 30985491
• Sum of all divisors σ(n): 41356224
• Sum of proper divisors (its aliquot sum) s(n): 10370733
• 30985491 is a deficient number, because the sum of its proper divisors (10370733) is less than itself. Its deficiency is 20614758

Bases of 30985491

• Binary: 1110110001100110100010011₂
• Hexadecimal: 0x1D8CD13
• Base-36: IG4K3

Squares and roots of 30985491

• 30985491 squared (30985491²) is 960100652511081
• 30985491 cubed (30985491³) is 29749190127476227725771
• The square root of 30985491 is 5566.4612636755
• The cube root of 30985491 is 314.0890486753

Scales and comparisons

• 30,985,491 seconds is equal to 51 weeks, 1 day, 15 hours, 4 minutes, 51 seconds.
• To count from 1 to 30,985,491 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 30985491 cubic inches would be around 26.2 feet tall.

Recreational maths with 30985491

• 30985491 backwards is 19458903
• The number of decimal digits it has is: 8
• The sum of 30985491's digits is 39
• More coming soon!