6720

Names of 6720

• Cardinal: 6720 can be written as Six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 6.72 × 10³

Factors of 6720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 17

Divisors of 6720

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 140 160 168 192 210 224 240 280 320 336 420 448 480 560 672 840 960 1120 1344 1680 2240 3360 6720
• Sum of all divisors σ(n): 24384
• Sum of proper divisors (its aliquot sum) s(n): 17664
• 6720 is an abundant number, because the sum of its proper divisors (17664) is greater than itself. Its abundance is 10944

Bases of 6720

• Binary: 1101001000000₂
• Hexadecimal: 0x1A40
• Base-36: 56O

Squares and roots of 6720

• 6720 squared (6720²) is 45158400
• 6720 cubed (6720³) is 303464448000
• The square root of 6720 is 81.9756061277
• The cube root of 6720 is 18.8707759213

Scales and comparisons

• 6,720 seconds is equal to 1 hour, 52 minutes.
• To count from 1 to 6,720 would take you about fifty-two minutes.

  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 6720 cubic inches would be around 1.6 feet tall.

Recreational maths with 6720

• 6720 backwards is 0276
• 6720 is a Harshad number.
• The number of decimal digits it has is: 4
• The sum of 6720's digits is 15
• More coming soon!