12745

Names of 12745

• Cardinal: 12745 can be written as Twelve thousand, seven hundred forty-five.

Scientific notation

• Scientific notation: 1.2745 × 10⁴

Factors of 12745

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 2554

Divisors of 12745

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5 2549 12745
• Sum of all divisors σ(n): 15300
• Sum of proper divisors (its aliquot sum) s(n): 2555
• 12745 is a deficient number, because the sum of its proper divisors (2555) is less than itself. Its deficiency is 10190

Bases of 12745

• Binary: 11000111001001₂
• Hexadecimal: 0x31C9
• Base-36: 9U1

Squares and roots of 12745

• 12745 squared (12745²) is 162435025
• 12745 cubed (12745³) is 2070234393625
• The square root of 12745 is 112.8937553631
• The cube root of 12745 is 23.3585894329

Scales and comparisons

• 12,745 seconds is equal to 3 hours, 32 minutes, 25 seconds.
• To count from 1 to 12,745 would take you about three hours.

  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 12745 cubic inches would be around 1.9 feet tall.

Recreational maths with 12745

• 12745 backwards is 54721
• The number of decimal digits it has is: 5
• The sum of 12745's digits is 19
• More coming soon!