28993

Names of 28993

• Cardinal: 28993 can be written as Twenty-eight thousand, nine hundred ninety-three.

Scientific notation

• Scientific notation: 2.8993 × 10⁴

Factors of 28993

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 446

Divisors of 28993

• Number of divisors d(n): 4
• Complete list of divisors:
  1 79 367 28993
• Sum of all divisors σ(n): 29440
• Sum of proper divisors (its aliquot sum) s(n): 447
• 28993 is a deficient number, because the sum of its proper divisors (447) is less than itself. Its deficiency is 28546

Bases of 28993

• Binary: 111000101000001₂
• Hexadecimal: 0x7141
• Base-36: MDD

Squares and roots of 28993

• 28993 squared (28993²) is 840594049
• 28993 cubed (28993³) is 24371343262657
• The square root of 28993 is 170.2733097113
• The cube root of 28993 is 30.7206960789

Scales and comparisons

• 28,993 seconds is equal to 8 hours, 3 minutes, 13 seconds.
• To count from 1 to 28,993 would take you about eight 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 28993 cubic inches would be around 2.6 feet tall.

Recreational maths with 28993

• 28993 backwards is 39982
• The number of decimal digits it has is: 5
• The sum of 28993's digits is 31
• More coming soon!