28812000

Names of 28812000

• Cardinal: 28812000 can be written as Twenty-eight million, eight hundred twelve thousand.

Scientific notation

• Scientific notation: 2.8812 × 10⁷

Factors of 28812000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 17

Divisors of 28812000

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 32 35 40 42 48 49 50 56 60 70 75 80 84 96 98 100 105 112 120 125 140 147 150 160 168 175 196 200 210 224 240 245 250 280 294 300 336 343 350 375 392 400 420 480 490 500 525 560 588 600 672 686 700 735 750 784 800 840 875 980 1000 1029 1050 1120 1176 1200 1225 1372 1400 1470 1500 1568 1680 1715 1750 1960 2000 2058 2100 2352 2400 2401 2450 2625 2744 2800 2940 3000 3360 3430 3500 3675 3920 4000 4116 4200 4704 4802 4900 5145 5250 5488 5600 5880 6000 6125 6860 7000 7203 7350 7840 8232 8400 8575 9604 9800 10290 10500 10976 11760 12000 12005 12250 13720 14000 14406 14700 16464 16800 17150 18375 19208 19600 20580 21000 23520 24010 24500 25725 27440 28000 28812 29400 32928 34300 36015 36750 38416 39200 41160 42000 42875 48020 49000 51450 54880 57624 58800 60025 68600 72030 73500 76832 82320 84000 85750 96040 98000 102900 115248 117600 120050 128625 137200 144060 147000 164640 171500 180075 192080 196000 205800 230496 240100 257250 274400 288120 294000 300125 343000 360150 384160 411600 480200 514500 576240 588000 600250 686000 720300 823200 900375 960400 1029000 1152480 1200500 1372000 1440600 1800750 1920800 2058000 2401000 2881200 3601500 4116000 4802000 5762400 7203000 9604000 14406000 28812000
• Sum of all divisors σ(n): 110112912
• Sum of proper divisors (its aliquot sum) s(n): 81300912
• 28812000 is an abundant number, because the sum of its proper divisors (81300912) is greater than itself. Its abundance is 52488912

Bases of 28812000

• Binary: 1101101111010001011100000₂
• Hexadecimal: 0x1B7A2E0
• Base-36: H5JHC

Squares and roots of 28812000

• 28812000 squared (28812000²) is 830131344000000
• 28812000 cubed (28812000³) is 23917744283328000000000
• The square root of 28812000 is 5367.6810635507
• The cube root of 28812000 is 306.5663397921

Scales and comparisons

• 28,812,000 seconds is equal to 47 weeks, 4 days, 11 hours, 20 minutes.
• To count from 1 to 28,812,000 would take you about nineteen weeks!

  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 28812000 cubic inches would be around 25.5 feet tall.

Recreational maths with 28812000

• 28812000 backwards is 00021882
• 28812000 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28812000's digits is 21
• More coming soon!