2720

Names of 2720

• Cardinal: 2720 can be written as Two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.72 × 10³

Factors of 2720

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 24

Divisors of 2720

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 136 160 170 272 340 544 680 1360 2720
• Sum of all divisors σ(n): 6804
• Sum of proper divisors (its aliquot sum) s(n): 4084
• 2720 is an abundant number, because the sum of its proper divisors (4084) is greater than itself. Its abundance is 1364

Bases of 2720

• Binary: 101010100000₂
• Hexadecimal: 0xAA0
• Base-36: 23K

Squares and roots of 2720

• 2720 squared (2720²) is 7398400
• 2720 cubed (2720³) is 20123648000
• The square root of 2720 is 52.1536192417
• The cube root of 2720 is 13.9590640939

Scales and comparisons

• 2,720 seconds is equal to 45 minutes, 20 seconds.
• To count from 1 to 2,720 would take you about forty-five 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 2720 cubic inches would be around 1.2 feet tall.

Recreational maths with 2720

• 2720 backwards is 0272
• The number of decimal digits it has is: 4
• The sum of 2720's digits is 11
• More coming soon!