30985

Names of 30985

• Cardinal: 30985 can be written as Thirty thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 3.0985 × 10⁴

Factors of 30985

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 6202

Divisors of 30985

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5 6197 30985
• Sum of all divisors σ(n): 37188
• Sum of proper divisors (its aliquot sum) s(n): 6203
• 30985 is a deficient number, because the sum of its proper divisors (6203) is less than itself. Its deficiency is 24782

Bases of 30985

• Binary: 111100100001001₂
• Hexadecimal: 0x7909
• Base-36: NWP

Squares and roots of 30985

• 30985 squared (30985²) is 960070225
• 30985 cubed (30985³) is 29747775921625
• The square root of 30985 is 176.0255663249
• The cube root of 30985 is 31.4087389637

Scales and comparisons

• 30,985 seconds is equal to 8 hours, 36 minutes, 25 seconds.
• To count from 1 to 30,985 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 30985 cubic inches would be around 2.6 feet tall.

Recreational maths with 30985

• 30985 backwards is 58903
• The number of decimal digits it has is: 5
• The sum of 30985's digits is 25
• More coming soon!