2666890

Names of 2666890

• Cardinal: 2666890 can be written as Two million, six hundred sixty-six thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 2.66689 × 10⁶

Factors of 2666890

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 266696

Divisors of 2666890

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 266689 533378 1333445 2666890
• Sum of all divisors σ(n): 4800420
• Sum of proper divisors (its aliquot sum) s(n): 2133530
• 2666890 is a deficient number, because the sum of its proper divisors (2133530) is less than itself. Its deficiency is 533360

Bases of 2666890

• Binary: 1010001011000110001010₂
• Hexadecimal: 0x28B18A
• Base-36: 1L5SA

Squares and roots of 2666890

• 2666890 squared (2666890²) is 7112302272100
• 2666890 cubed (2666890³) is 18967727806440769000
• The square root of 2666890 is 1633.0615420125
• The cube root of 2666890 is 138.6761260291

Scales and comparisons

• 2,666,890 seconds is equal to 4 weeks, 2 days, 20 hours, 48 minutes, 10 seconds.
• To count from 1 to 2,666,890 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 2666890 cubic inches would be around 11.6 feet tall.

Recreational maths with 2666890

• 2666890 backwards is 0986662
• The number of decimal digits it has is: 7
• The sum of 2666890's digits is 37
• More coming soon!