12445

Names of 12445

• Cardinal: 12445 can be written as Twelve thousand, four hundred forty-five.

Scientific notation

• Scientific notation: 1.2445 × 10⁴

Factors of 12445

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 155

Divisors of 12445

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 19 95 131 655 2489 12445
• Sum of all divisors σ(n): 15840
• Sum of proper divisors (its aliquot sum) s(n): 3395
• 12445 is a deficient number, because the sum of its proper divisors (3395) is less than itself. Its deficiency is 9050

Bases of 12445

• Binary: 11000010011101₂
• Hexadecimal: 0x309D
• Base-36: 9LP

Squares and roots of 12445

• 12445 squared (12445²) is 154878025
• 12445 cubed (12445³) is 1927457021125
• The square root of 12445 is 111.5571602361
• The cube root of 12445 is 23.1738558047

Scales and comparisons

• 12,445 seconds is equal to 3 hours, 27 minutes, 25 seconds.
• To count from 1 to 12,445 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 12445 cubic inches would be around 1.9 feet tall.

Recreational maths with 12445

• 12445 backwards is 54421
• The number of decimal digits it has is: 5
• The sum of 12445's digits is 16
• More coming soon!