30920

Names of 30920

• Cardinal: 30920 can be written as Thirty thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.092 × 10⁴

Factors of 30920

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 780

Divisors of 30920

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 4 5 8 10 20 40 773 1546 3092 3865 6184 7730 15460 30920
• Sum of all divisors σ(n): 69660
• Sum of proper divisors (its aliquot sum) s(n): 38740
• 30920 is an abundant number, because the sum of its proper divisors (38740) is greater than itself. Its abundance is 7820

Bases of 30920

• Binary: 111100011001000₂
• Hexadecimal: 0x78C8
• Base-36: NUW

Squares and roots of 30920

• 30920 squared (30920²) is 956046400
• 30920 cubed (30920³) is 29560954688000
• The square root of 30920 is 175.8408371227
• The cube root of 30920 is 31.3867606159

Scales and comparisons

• 30,920 seconds is equal to 8 hours, 35 minutes, 20 seconds.
• To count from 1 to 30,920 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 30920 cubic inches would be around 2.6 feet tall.

Recreational maths with 30920

• 30920 backwards is 02903
• The number of decimal digits it has is: 5
• The sum of 30920's digits is 14
• More coming soon!