18280

Names of 18280

• Cardinal: 18280 can be written as Eighteen thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.828 × 10⁴

Factors of 18280

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 464

Divisors of 18280

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 4 5 8 10 20 40 457 914 1828 2285 3656 4570 9140 18280
• Sum of all divisors σ(n): 41220
• Sum of proper divisors (its aliquot sum) s(n): 22940
• 18280 is an abundant number, because the sum of its proper divisors (22940) is greater than itself. Its abundance is 4660

Bases of 18280

• Binary: 100011101101000₂
• Hexadecimal: 0x4768
• Base-36: E3S

Squares and roots of 18280

• 18280 squared (18280²) is 334158400
• 18280 cubed (18280³) is 6108415552000
• The square root of 18280 is 135.2035502495
• The cube root of 18280 is 26.3426056471

Scales and comparisons

• 18,280 seconds is equal to 5 hours, 4 minutes, 40 seconds.
• To count from 1 to 18,280 would take you about five 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 18280 cubic inches would be around 2.2 feet tall.

Recreational maths with 18280

• 18280 backwards is 08281
• The number of decimal digits it has is: 5
• The sum of 18280's digits is 19
• More coming soon!