28287000

Names of 28287000

• Cardinal: 28287000 can be written as Twenty-eight million, two hundred eighty-seven thousand.

Scientific notation

• Scientific notation: 2.8287 × 10⁷

Factors of 28287000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 466

Divisors of 28287000

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 25 28 30 35 36 40 42 45 50 56 60 63 70 72 75 84 90 100 105 120 125 126 140 150 168 175 180 200 210 225 250 252 280 300 315 350 360 375 420 449 450 500 504 525 600 630 700 750 840 875 898 900 1000 1050 1125 1260 1347 1400 1500 1575 1750 1796 1800 2100 2245 2250 2520 2625 2694 3000 3143 3150 3500 3592 4041 4200 4490 4500 5250 5388 6286 6300 6735 7000 7875 8082 8980 9000 9429 10500 10776 11225 12572 12600 13470 15715 15750 16164 17960 18858 20205 21000 22450 25144 26940 28287 31430 31500 32328 33675 37716 40410 44900 47145 53880 56125 56574 62860 63000 67350 75432 78575 80820 89800 94290 101025 112250 113148 125720 134700 141435 157150 161640 168375 188580 202050 224500 226296 235725 269400 282870 314300 336750 377160 392875 404100 449000 471450 505125 565740 628600 673500 707175 785750 808200 942900 1010250 1131480 1178625 1347000 1414350 1571500 1885800 2020500 2357250 2828700 3143000 3535875 4041000 4714500 5657400 7071750 9429000 14143500 28287000
• Sum of all divisors σ(n): 109512000
• Sum of proper divisors (its aliquot sum) s(n): 81225000
• 28287000 is an abundant number, because the sum of its proper divisors (81225000) is greater than itself. Its abundance is 52938000

Bases of 28287000

• Binary: 1101011111010000000011000₂
• Hexadecimal: 0x1AFA018
• Base-36: GUAE0

Squares and roots of 28287000

• 28287000 squared (28287000²) is 800154369000000
• 28287000 cubed (28287000³) is 22633966635903000000000
• The square root of 28287000 is 5318.5524346385
• The cube root of 28287000 is 304.6928736725

Scales and comparisons

• 28,287,000 seconds is equal to 46 weeks, 5 days, 9 hours, 30 minutes.
• To count from 1 to 28,287,000 would take you about eighteen 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 28287000 cubic inches would be around 25.4 feet tall.

Recreational maths with 28287000

• 28287000 backwards is 00078282
• The number of decimal digits it has is: 8
• The sum of 28287000's digits is 27
• More coming soon!