18480

Names of 18480

• Cardinal: 18480 can be written as Eighteen thousand, four hundred eighty.

Scientific notation

• Scientific notation: 1.848 × 10⁴

Factors of 18480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 28

Divisors of 18480

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 33 35 40 42 44 48 55 56 60 66 70 77 80 84 88 105 110 112 120 132 140 154 165 168 176 210 220 231 240 264 280 308 330 336 385 420 440 462 528 560 616 660 770 840 880 924 1155 1232 1320 1540 1680 1848 2310 2640 3080 3696 4620 6160 9240 18480
• Sum of all divisors σ(n): 71424
• Sum of proper divisors (its aliquot sum) s(n): 52944
• 18480 is an abundant number, because the sum of its proper divisors (52944) is greater than itself. Its abundance is 34464

Bases of 18480

• Binary: 100100000110000₂
• Hexadecimal: 0x4830
• Base-36: E9C

Squares and roots of 18480

• 18480 squared (18480²) is 341510400
• 18480 cubed (18480³) is 6311112192000
• The square root of 18480 is 135.9411637437
• The cube root of 18480 is 26.4383281655

Scales and comparisons

• 18,480 seconds is equal to 5 hours, 8 minutes.
• To count from 1 to 18,480 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 18480 cubic inches would be around 2.2 feet tall.

Recreational maths with 18480

• 18480 backwards is 08481
• 18480 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 18480's digits is 21
• More coming soon!