6990

Names of 6990

• Cardinal: 6990 can be written as Six thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 6.99 × 10³

Factors of 6990

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 243

Divisors of 6990

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 5 6 10 15 30 233 466 699 1165 1398 2330 3495 6990
• Sum of all divisors σ(n): 16848
• Sum of proper divisors (its aliquot sum) s(n): 9858
• 6990 is an abundant number, because the sum of its proper divisors (9858) is greater than itself. Its abundance is 2868

Bases of 6990

• Binary: 1101101001110₂
• Hexadecimal: 0x1B4E
• Base-36: 5E6

Squares and roots of 6990

• 6990 squared (6990²) is 48860100
• 6990 cubed (6990³) is 341532099000
• The square root of 6990 is 83.6062198643
• The cube root of 6990 is 19.1201982905

Scales and comparisons

• 6,990 seconds is equal to 1 hour, 56 minutes, 30 seconds.
• To count from 1 to 6,990 would take you about fifty-six minutes.

  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 6990 cubic inches would be around 1.6 feet tall.

Recreational maths with 6990

• 6990 backwards is 0996
• The number of decimal digits it has is: 4
• The sum of 6990's digits is 24
• More coming soon!