2129749

Names of 2129749

• Cardinal: 2129749 can be written as Two million, one hundred twenty-nine thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 2.129749 × 10⁶

Factors of 2129749

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 2129749

Divisors of 2129749

• Number of divisors d(n): 2
• Complete list of divisors:
  1 2129749
• Sum of all divisors σ(n): 2129750
• Sum of proper divisors (its aliquot sum) s(n): 1
• 2129749 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 2129748

Bases of 2129749

• Binary: 1000000111111101010101₂
• Hexadecimal: 0x207F55
• Base-36: 19NBP

Squares and roots of 2129749

• 2129749 squared (2129749²) is 4535830803001
• 2129749 cubed (2129749³) is 9660181116860576749
• The square root of 2129749 is 1459.3659582161
• The cube root of 2129749 is 128.6597809531

Scales and comparisons

• 2,129,749 seconds is equal to 3 weeks, 3 days, 15 hours, 35 minutes, 49 seconds.
• To count from 1 to 2,129,749 would take you about five 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 2129749 cubic inches would be around 10.7 feet tall.

Recreational maths with 2129749

• 2129749 backwards is 9479212
• The number of decimal digits it has is: 7
• The sum of 2129749's digits is 34
• More coming soon!