30000

Names of 30000

• Cardinal: 30000 can be written as Thirty thousand.

Scientific notation

• Scientific notation: 3 × 10⁴

Factors of 30000

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 10

Divisors of 30000

• Number of divisors d(n): 50
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 125 150 200 240 250 300 375 400 500 600 625 750 1000 1200 1250 1500 1875 2000 2500 3000 3750 5000 6000 7500 10000 15000 30000
• Sum of all divisors σ(n): 96844
• Sum of proper divisors (its aliquot sum) s(n): 66844
• 30000 is an abundant number, because the sum of its proper divisors (66844) is greater than itself. Its abundance is 36844

Bases of 30000

• Binary: 111010100110000₂
• Hexadecimal: 0x7530
• Base-36: N5C

Squares and roots of 30000

• 30000 squared (30000²) is 900000000
• 30000 cubed (30000³) is 27000000000000
• The square root of 30000 is 173.2050807569
• The cube root of 30000 is 31.0723250595

Scales and comparisons

• 30,000 seconds is equal to 8 hours, 20 minutes.
• To count from 1 to 30,000 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 30000 cubic inches would be around 2.6 feet tall.

Recreational maths with 30000

• 30000 backwards is 00003
• 30000 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 30000's digits is 3
• More coming soon!