7220

Names of 7220

• Cardinal: 7220 can be written as Seven thousand, two hundred twenty.

Scientific notation

• Scientific notation: 7.22 × 10³

Factors of 7220

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 26

Divisors of 7220

• Number of divisors d(n): 18
• Complete list of divisors:
  1 2 4 5 10 19 20 38 76 95 190 361 380 722 1444 1805 3610 7220
• Sum of all divisors σ(n): 16002
• Sum of proper divisors (its aliquot sum) s(n): 8782
• 7220 is an abundant number, because the sum of its proper divisors (8782) is greater than itself. Its abundance is 1562

Bases of 7220

• Binary: 1110000110100₂
• Hexadecimal: 0x1C34
• Base-36: 5KK

Squares and roots of 7220

• 7220 squared (7220²) is 52128400
• 7220 cubed (7220³) is 376367048000
• The square root of 7220 is 84.9705831451
• The cube root of 7220 is 19.3276505957

Scales and comparisons

• 7,220 seconds is equal to 2 hours, 20 seconds.
• To count from 1 to 7,220 would take you about two 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 7220 cubic inches would be around 1.6 feet tall.

Recreational maths with 7220

• 7220 backwards is 0227
• The number of decimal digits it has is: 4
• The sum of 7220's digits is 11
• More coming soon!