12840445

Names of 12840445

• Cardinal: 12840445 can be written as Twelve million, eight hundred forty thousand, four hundred forty-five.

Scientific notation

• Scientific notation: 1.2840445 × 10⁷

Factors of 12840445

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 59771

Divisors of 12840445

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 43 215 59723 298615 2568089 12840445
• Sum of all divisors σ(n): 15767136
• Sum of proper divisors (its aliquot sum) s(n): 2926691
• 12840445 is a deficient number, because the sum of its proper divisors (2926691) is less than itself. Its deficiency is 9913754

Bases of 12840445

• Binary: 110000111110110111111101₂
• Hexadecimal: 0xC3EDFD
• Base-36: 7N7R1

Squares and roots of 12840445

• 12840445 squared (12840445²) is 164877027798025
• 12840445 cubed (12840445³) is 2117094407204011121125
• The square root of 12840445 is 3583.3566665907
• The cube root of 12840445 is 234.1675389647

Scales and comparisons

• 12,840,445 seconds is equal to 21 weeks, 1 day, 14 hours, 47 minutes, 25 seconds.
• To count from 1 to 12,840,445 would take you about thirty-one 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 12840445 cubic inches would be around 19.5 feet tall.

Recreational maths with 12840445

• 12840445 backwards is 54404821
• The number of decimal digits it has is: 8
• The sum of 12840445's digits is 28
• More coming soon!