30440

Names of 30440

• Cardinal: 30440 can be written as Thirty thousand, four hundred forty.

Scientific notation

• Scientific notation: 3.044 × 10⁴

Factors of 30440

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 768

Divisors of 30440

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 4 5 8 10 20 40 761 1522 3044 3805 6088 7610 15220 30440
• Sum of all divisors σ(n): 68580
• Sum of proper divisors (its aliquot sum) s(n): 38140
• 30440 is an abundant number, because the sum of its proper divisors (38140) is greater than itself. Its abundance is 7700

Bases of 30440

• Binary: 111011011101000₂
• Hexadecimal: 0x76E8
• Base-36: NHK

Squares and roots of 30440

• 30440 squared (30440²) is 926593600
• 30440 cubed (30440³) is 28205509184000
• The square root of 30440 is 174.4706279005
• The cube root of 30440 is 31.2234975301

Scales and comparisons

• 30,440 seconds is equal to 8 hours, 27 minutes, 20 seconds.
• To count from 1 to 30,440 would take you about eight 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 30440 cubic inches would be around 2.6 feet tall.

Recreational maths with 30440

• 30440 backwards is 04403
• The number of decimal digits it has is: 5
• The sum of 30440's digits is 11
• More coming soon!