49890

Names of 49890

• Cardinal: 49890 can be written as Forty-nine thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 4.989 × 10⁴

Factors of 49890

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 1673

Divisors of 49890

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 5 6 10 15 30 1663 3326 4989 8315 9978 16630 24945 49890
• Sum of all divisors σ(n): 119808
• Sum of proper divisors (its aliquot sum) s(n): 69918
• 49890 is an abundant number, because the sum of its proper divisors (69918) is greater than itself. Its abundance is 20028

Bases of 49890

• Binary: 1100001011100010₂
• Hexadecimal: 0xC2E2
• Base-36: 12HU

Squares and roots of 49890

• 49890 squared (49890²) is 2489012100
• 49890 cubed (49890³) is 124176813669000
• The square root of 49890 is 223.3606948413
• The cube root of 49890 is 36.8132789191

Scales and comparisons

• 49,890 seconds is equal to 13 hours, 51 minutes, 30 seconds.
• To count from 1 to 49,890 would take you about thirteen 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 49890 cubic inches would be around 3.1 feet tall.

Recreational maths with 49890

• 49890 backwards is 09894
• 49890 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 49890's digits is 30
• More coming soon!