28487

Names of 28487

• Cardinal: 28487 can be written as Twenty-eight thousand, four hundred eighty-seven.

Scientific notation

• Scientific notation: 2.8487 × 10⁴

Factors of 28487

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 528

Divisors of 28487

• Number of divisors d(n): 4
• Complete list of divisors:
  1 61 467 28487
• Sum of all divisors σ(n): 29016
• Sum of proper divisors (its aliquot sum) s(n): 529
• 28487 is a deficient number, because the sum of its proper divisors (529) is less than itself. Its deficiency is 27958

Bases of 28487

• Binary: 110111101000111₂
• Hexadecimal: 0x6F47
• Base-36: LZB

Squares and roots of 28487

• 28487 squared (28487²) is 811509169
• 28487 cubed (28487³) is 23117461697303
• The square root of 28487 is 168.7809230925
• The cube root of 28487 is 30.5409286589

Scales and comparisons

• 28,487 seconds is equal to 7 hours, 54 minutes, 47 seconds.
• To count from 1 to 28,487 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 28487 cubic inches would be around 2.5 feet tall.

Recreational maths with 28487

• 28487 backwards is 78482
• The number of decimal digits it has is: 5
• The sum of 28487's digits is 29
• More coming soon!