19740

Names of 19740

• Cardinal: 19740 can be written as Nineteen thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.974 × 10⁴

Factors of 19740

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 64

Divisors of 19740

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 47 60 70 84 94 105 140 141 188 210 235 282 329 420 470 564 658 705 940 987 1316 1410 1645 1974 2820 3290 3948 4935 6580 9870 19740
• Sum of all divisors σ(n): 64512
• Sum of proper divisors (its aliquot sum) s(n): 44772
• 19740 is an abundant number, because the sum of its proper divisors (44772) is greater than itself. Its abundance is 25032

Bases of 19740

• Binary: 100110100011100₂
• Hexadecimal: 0x4D1C
• Base-36: F8C

Squares and roots of 19740

• 19740 squared (19740²) is 389667600
• 19740 cubed (19740³) is 7692038424000
• The square root of 19740 is 140.4991103175
• The cube root of 19740 is 27.0260379819

Scales and comparisons

• 19,740 seconds is equal to 5 hours, 29 minutes.
• To count from 1 to 19,740 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 19740 cubic inches would be around 2.3 feet tall.

Recreational maths with 19740

• 19740 backwards is 04791
• 19740 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 19740's digits is 21
• More coming soon!