2665990

Names of 2665990

• Cardinal: 2665990 can be written as Two million, six hundred sixty-five thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 2.66599 × 10⁶

Factors of 2665990

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 266606

Divisors of 2665990

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 266599 533198 1332995 2665990
• Sum of all divisors σ(n): 4798800
• Sum of proper divisors (its aliquot sum) s(n): 2132810
• 2665990 is a deficient number, because the sum of its proper divisors (2132810) is less than itself. Its deficiency is 533180

Bases of 2665990

• Binary: 1010001010111000000110₂
• Hexadecimal: 0x28AE06
• Base-36: 1L53A

Squares and roots of 2665990

• 2665990 squared (2665990²) is 7107502680100
• 2665990 cubed (2665990³) is 18948531070119799000
• The square root of 2665990 is 1632.7859627031
• The cube root of 2665990 is 138.6605245163

Scales and comparisons

• 2,665,990 seconds is equal to 4 weeks, 2 days, 20 hours, 33 minutes, 10 seconds.
• To count from 1 to 2,665,990 would take you about six weeks!

  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 2665990 cubic inches would be around 11.6 feet tall.

Recreational maths with 2665990

• 2665990 backwards is 0995662
• The number of decimal digits it has is: 7
• The sum of 2665990's digits is 37
• More coming soon!