28080000

Names of 28080000

• Cardinal: 28080000 can be written as Twenty-eight million, eighty thousand.

Scientific notation

• Scientific notation: 2.808 × 10⁷

Factors of 28080000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 23

Divisors of 28080000

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 25 26 27 30 32 36 39 40 45 48 50 52 54 60 64 65 72 75 78 80 90 96 100 104 108 117 120 125 128 130 135 144 150 156 160 180 192 195 200 208 216 225 234 240 250 260 270 288 300 312 320 325 351 360 375 384 390 400 416 432 450 468 480 500 520 540 576 585 600 624 625 640 650 675 702 720 750 780 800 832 864 900 936 960 975 1000 1040 1080 1125 1152 1170 1200 1248 1250 1300 1350 1404 1440 1500 1560 1600 1625 1664 1728 1755 1800 1872 1875 1920 1950 2000 2080 2160 2250 2340 2400 2496 2500 2600 2700 2808 2880 2925 3000 3120 3200 3250 3375 3456 3510 3600 3744 3750 3900 4000 4160 4320 4500 4680 4800 4875 4992 5000 5200 5400 5616 5625 5760 5850 6000 6240 6500 6750 7020 7200 7488 7500 7800 8000 8125 8320 8640 8775 9000 9360 9600 9750 10000 10400 10800 11232 11250 11700 12000 12480 13000 13500 14040 14400 14625 14976 15000 15600 16000 16250 16875 17280 17550 18000 18720 19500 20000 20800 21600 22464 22500 23400 24000 24375 24960 26000 27000 28080 28800 29250 30000 31200 32500 33750 35100 36000 37440 39000 40000 41600 43200 43875 44928 45000 46800 48000 48750 52000 54000 56160 58500 60000 62400 65000 67500 70200 72000 73125 74880 78000 80000 86400 87750 90000 93600 97500 104000 108000 112320 117000 120000 124800 130000 135000 140400 144000 146250 156000 175500 180000 187200 195000 208000 216000 219375 224640 234000 240000 260000 270000 280800 292500 312000 351000 360000 374400 390000 432000 438750 468000 520000 540000 561600 585000 624000 702000 720000 780000 877500 936000 1040000 1080000 1123200 1170000 1404000 1560000 1755000 1872000 2160000 2340000 2808000 3120000 3510000 4680000 5616000 7020000 9360000 14040000 28080000
• Sum of all divisors σ(n): 111526800
• Sum of proper divisors (its aliquot sum) s(n): 83446800
• 28080000 is an abundant number, because the sum of its proper divisors (83446800) is greater than itself. Its abundance is 55366800

Bases of 28080000

• Binary: 1101011000111011110000000₂
• Hexadecimal: 0x1AC7780
• Base-36: GPUO0

Squares and roots of 28080000

• 28080000 squared (28080000²) is 788486400000000
• 28080000 cubed (28080000³) is 22140698112000000000000
• The square root of 28080000 is 5299.0565197967
• The cube root of 28080000 is 303.9478211459

Scales and comparisons

• 28,080,000 seconds is equal to 46 weeks, 3 days.
• To count from 1 to 28,080,000 would take you about seventeen 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 28080000 cubic inches would be around 25.3 feet tall.

Recreational maths with 28080000

• 28080000 backwards is 00008082
• 28080000 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28080000's digits is 18
• More coming soon!