15120

Names of 15120

• Cardinal: 15120 can be written as Fifteen thousand, one hundred twenty.

Scientific notation

• Scientific notation: 1.512 × 10⁴

Factors of 15120

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 17

Divisors of 15120

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 54 56 60 63 70 72 80 84 90 105 108 112 120 126 135 140 144 168 180 189 210 216 240 252 270 280 315 336 360 378 420 432 504 540 560 630 720 756 840 945 1008 1080 1260 1512 1680 1890 2160 2520 3024 3780 5040 7560 15120
• Sum of all divisors σ(n): 59520
• Sum of proper divisors (its aliquot sum) s(n): 44400
• 15120 is an abundant number, because the sum of its proper divisors (44400) is greater than itself. Its abundance is 29280

Bases of 15120

• Binary: 11101100010000₂
• Hexadecimal: 0x3B10
• Base-36: BO0

Squares and roots of 15120

• 15120 squared (15120²) is 228614400
• 15120 cubed (15120³) is 3456649728000
• The square root of 15120 is 122.9634091915
• The cube root of 15120 is 24.7277117989

Scales and comparisons

• 15,120 seconds is equal to 4 hours, 12 minutes.
• To count from 1 to 15,120 would take you about four 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 15120 cubic inches would be around 2.1 feet tall.

Recreational maths with 15120

• 15120 backwards is 02151
• 15120 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 15120's digits is 9
• More coming soon!