28149

Names of 28149

• Cardinal: 28149 can be written as Twenty-eight thousand, one hundred forty-nine.

Scientific notation

• Scientific notation: 2.8149 × 10⁴

Factors of 28149

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 867

Divisors of 28149

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 11 33 853 2559 9383 28149
• Sum of all divisors σ(n): 40992
• Sum of proper divisors (its aliquot sum) s(n): 12843
• 28149 is a deficient number, because the sum of its proper divisors (12843) is less than itself. Its deficiency is 15306

Bases of 28149

• Binary: 110110111110101₂
• Hexadecimal: 0x6DF5
• Base-36: LPX

Squares and roots of 28149

• 28149 squared (28149²) is 792366201
• 28149 cubed (28149³) is 22304316191949
• The square root of 28149 is 167.7766372293
• The cube root of 28149 is 30.4196577613

Scales and comparisons

• 28,149 seconds is equal to 7 hours, 49 minutes, 9 seconds.
• To count from 1 to 28,149 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 28149 cubic inches would be around 2.5 feet tall.

Recreational maths with 28149

• 28149 backwards is 94182
• The number of decimal digits it has is: 5
• The sum of 28149's digits is 24
• More coming soon!