18040

Names of 18040

• Cardinal: 18040 can be written as Eighteen thousand and forty.

Scientific notation

• Scientific notation: 1.804 × 10⁴

Factors of 18040

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 59

Divisors of 18040

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 4 5 8 10 11 20 22 40 41 44 55 82 88 110 164 205 220 328 410 440 451 820 902 1640 1804 2255 3608 4510 9020 18040
• Sum of all divisors σ(n): 45360
• Sum of proper divisors (its aliquot sum) s(n): 27320
• 18040 is an abundant number, because the sum of its proper divisors (27320) is greater than itself. Its abundance is 9280

Bases of 18040

• Binary: 100011001111000₂
• Hexadecimal: 0x4678
• Base-36: DX4

Squares and roots of 18040

• 18040 squared (18040²) is 325441600
• 18040 cubed (18040³) is 5870966464000
• The square root of 18040 is 134.3130671231
• The cube root of 18040 is 26.2268124791

Scales and comparisons

• 18,040 seconds is equal to 5 hours, 40 seconds.
• To count from 1 to 18,040 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 18040 cubic inches would be around 2.2 feet tall.

Recreational maths with 18040

• 18040 backwards is 04081
• The number of decimal digits it has is: 5
• The sum of 18040's digits is 13
• More coming soon!