2445

Names of 2445

• Cardinal: 2445 can be written as Two thousand, four hundred forty-five.

Scientific notation

• Scientific notation: 2.445 × 10³

Factors of 2445

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 171

Divisors of 2445

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 5 15 163 489 815 2445
• Sum of all divisors σ(n): 3936
• Sum of proper divisors (its aliquot sum) s(n): 1491
• 2445 is a deficient number, because the sum of its proper divisors (1491) is less than itself. Its deficiency is 954

Bases of 2445

• Binary: 100110001101₂
• Hexadecimal: 0x98D
• Base-36: 1VX

Squares and roots of 2445

• 2445 squared (2445²) is 5978025
• 2445 cubed (2445³) is 14616271125
• The square root of 2445 is 49.4469412603
• The cube root of 2445 is 13.4718205065

Scales and comparisons

• 2,445 seconds is equal to 40 minutes, 45 seconds.
• To count from 1 to 2,445 would take you about forty minutes.

  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 2445 cubic inches would be around 1.1 feet tall.

Recreational maths with 2445

• 2445 backwards is 5442
• 2445 is a Harshad number.
• The number of decimal digits it has is: 4
• The sum of 2445's digits is 15
• More coming soon!