18942

Names of 18942

• Cardinal: 18942 can be written as Eighteen thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 1.8942 × 10⁴

Factors of 18942

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

Divisors of 18942

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 7 11 14 21 22 33 41 42 66 77 82 123 154 231 246 287 451 462 574 861 902 1353 1722 2706 3157 6314 9471 18942
• Sum of all divisors σ(n): 48384
• Sum of proper divisors (its aliquot sum) s(n): 29442
• 18942 is an abundant number, because the sum of its proper divisors (29442) is greater than itself. Its abundance is 10500

Bases of 18942

• Binary: 100100111111110₂
• Hexadecimal: 0x49FE
• Base-36: EM6

Squares and roots of 18942

• 18942 squared (18942²) is 358799364
• 18942 cubed (18942³) is 6796377552888
• The square root of 18942 is 137.6299386035
• The cube root of 18942 is 26.6568366547

Scales and comparisons

• 18,942 seconds is equal to 5 hours, 15 minutes, 42 seconds.
• To count from 1 to 18,942 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 18942 cubic inches would be around 2.2 feet tall.

Recreational maths with 18942

• 18942 backwards is 24981
• The number of decimal digits it has is: 5
• The sum of 18942's digits is 24
• More coming soon!