28004

Names of 28004

• Cardinal: 28004 can be written as Twenty-eight thousand and four.

Scientific notation

• Scientific notation: 2.8004 × 10⁴

Factors of 28004

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 7003

Divisors of 28004

• Number of divisors d(n): 6
• Complete list of divisors:
  1 2 4 7001 14002 28004
• Sum of all divisors σ(n): 49014
• Sum of proper divisors (its aliquot sum) s(n): 21010
• 28004 is a deficient number, because the sum of its proper divisors (21010) is less than itself. Its deficiency is 6994

Bases of 28004

• Binary: 110110101100100₂
• Hexadecimal: 0x6D64
• Base-36: LLW

Squares and roots of 28004

• 28004 squared (28004²) is 784224016
• 28004 cubed (28004³) is 21961409344064
• The square root of 28004 is 167.3439571661
• The cube root of 28004 is 30.3673356447

Scales and comparisons

• 28,004 seconds is equal to 7 hours, 46 minutes, 44 seconds.
• To count from 1 to 28,004 would take you about seven 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 28004 cubic inches would be around 2.5 feet tall.

Recreational maths with 28004

• 28004 backwards is 40082
• The number of decimal digits it has is: 5
• The sum of 28004's digits is 14
• More coming soon!