16820

Names of 16820

• Cardinal: 16820 can be written as Sixteen thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 1.682 × 10⁴

Factors of 16820

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 36

Divisors of 16820

• Number of divisors d(n): 18
• Complete list of divisors:
  1 2 4 5 10 20 29 58 116 145 290 580 841 1682 3364 4205 8410 16820
• Sum of all divisors σ(n): 36582
• Sum of proper divisors (its aliquot sum) s(n): 19762
• 16820 is an abundant number, because the sum of its proper divisors (19762) is greater than itself. Its abundance is 2942

Bases of 16820

• Binary: 100000110110100₂
• Hexadecimal: 0x41B4
• Base-36: CZ8

Squares and roots of 16820

• 16820 squared (16820²) is 282912400
• 16820 cubed (16820³) is 4758586568000
• The square root of 16820 is 129.6919426949
• The cube root of 16820 is 25.6217425961

Scales and comparisons

• 16,820 seconds is equal to 4 hours, 40 minutes, 20 seconds.
• To count from 1 to 16,820 would take you about four 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 16820 cubic inches would be around 2.1 feet tall.

Recreational maths with 16820

• 16820 backwards is 02861
• The number of decimal digits it has is: 5
• The sum of 16820's digits is 17
• More coming soon!