30820

Names of 30820

• Cardinal: 30820 can be written as Thirty thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 3.082 × 10⁴

Factors of 30820

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 97

Divisors of 30820

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 4 5 10 20 23 46 67 92 115 134 230 268 335 460 670 1340 1541 3082 6164 7705 15410 30820
• Sum of all divisors σ(n): 68544
• Sum of proper divisors (its aliquot sum) s(n): 37724
• 30820 is an abundant number, because the sum of its proper divisors (37724) is greater than itself. Its abundance is 6904

Bases of 30820

• Binary: 111100001100100₂
• Hexadecimal: 0x7864
• Base-36: NS4

Squares and roots of 30820

• 30820 squared (30820²) is 949872400
• 30820 cubed (30820³) is 29275067368000
• The square root of 30820 is 175.5562587891
• The cube root of 30820 is 31.3528875477

Scales and comparisons

• 30,820 seconds is equal to 8 hours, 33 minutes, 40 seconds.
• To count from 1 to 30,820 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 30820 cubic inches would be around 2.6 feet tall.

Recreational maths with 30820

• 30820 backwards is 02803
• The number of decimal digits it has is: 5
• The sum of 30820's digits is 13
• More coming soon!