28939

Names of 28939

• Cardinal: 28939 can be written as Twenty-eight thousand, nine hundred thirty-nine.

Scientific notation

• Scientific notation: 2.8939 × 10⁴

Factors of 28939

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 716

Divisors of 28939

• Number of divisors d(n): 4
• Complete list of divisors:
  1 43 673 28939
• Sum of all divisors σ(n): 29656
• Sum of proper divisors (its aliquot sum) s(n): 717
• 28939 is a deficient number, because the sum of its proper divisors (717) is less than itself. Its deficiency is 28222

Bases of 28939

• Binary: 111000100001011₂
• Hexadecimal: 0x710B
• Base-36: MBV

Squares and roots of 28939

• 28939 squared (28939²) is 837465721
• 28939 cubed (28939³) is 24235420500019
• The square root of 28939 is 170.1146672101
• The cube root of 28939 is 30.7016116035

Scales and comparisons

• 28,939 seconds is equal to 8 hours, 2 minutes, 19 seconds.
• To count from 1 to 28,939 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 28939 cubic inches would be around 2.6 feet tall.

Recreational maths with 28939

• 28939 backwards is 93982
• The number of decimal digits it has is: 5
• The sum of 28939's digits is 31
• More coming soon!