28560

Names of 28560

• Cardinal: 28560 can be written as Twenty-eight thousand, five hundred sixty.

Scientific notation

• Scientific notation: 2.856 × 10⁴

Factors of 28560

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 34

Divisors of 28560

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 17 20 21 24 28 30 34 35 40 42 48 51 56 60 68 70 80 84 85 102 105 112 119 120 136 140 168 170 204 210 238 240 255 272 280 336 340 357 408 420 476 510 560 595 680 714 816 840 952 1020 1190 1360 1428 1680 1785 1904 2040 2380 2856 3570 4080 4760 5712 7140 9520 14280 28560
• Sum of all divisors σ(n): 107136
• Sum of proper divisors (its aliquot sum) s(n): 78576
• 28560 is an abundant number, because the sum of its proper divisors (78576) is greater than itself. Its abundance is 50016

Bases of 28560

• Binary: 110111110010000₂
• Hexadecimal: 0x6F90
• Base-36: M1C

Squares and roots of 28560

• 28560 squared (28560²) is 815673600
• 28560 cubed (28560³) is 23295638016000
• The square root of 28560 is 168.9970413943
• The cube root of 28560 is 30.5669941869

Scales and comparisons

• 28,560 seconds is equal to 7 hours, 56 minutes.
• To count from 1 to 28,560 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 28560 cubic inches would be around 2.5 feet tall.

Recreational maths with 28560

• 28560 backwards is 06582
• 28560 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 28560's digits is 21
• More coming soon!