47990

Names of 47990

• Cardinal: 47990 can be written as Forty-seven thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 4.799 × 10⁴

Factors of 47990

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4806

Divisors of 47990

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 4799 9598 23995 47990
• Sum of all divisors σ(n): 86400
• Sum of proper divisors (its aliquot sum) s(n): 38410
• 47990 is a deficient number, because the sum of its proper divisors (38410) is less than itself. Its deficiency is 9580

Bases of 47990

• Binary: 1011101101110110₂
• Hexadecimal: 0xBB76
• Base-36: 1112

Squares and roots of 47990

• 47990 squared (47990²) is 2303040100
• 47990 cubed (47990³) is 110522894399000
• The square root of 47990 is 219.0662000399
• The cube root of 47990 is 36.3398879027

Scales and comparisons

• 47,990 seconds is equal to 13 hours, 19 minutes, 50 seconds.
• To count from 1 to 47,990 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 47990 cubic inches would be around 3 feet tall.

Recreational maths with 47990

• 47990 backwards is 09974
• The number of decimal digits it has is: 5
• The sum of 47990's digits is 29
• More coming soon!