28128000

Names of 28128000

• Cardinal: 28128000 can be written as Twenty-eight million, one hundred twenty-eight thousand.

Scientific notation

• Scientific notation: 2.8128 × 10⁷

Factors of 28128000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 303

Divisors of 28128000

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 125 128 150 160 192 200 240 250 256 293 300 320 375 384 400 480 500 586 600 640 750 768 800 879 960 1000 1172 1200 1280 1465 1500 1600 1758 1920 2000 2344 2400 2930 3000 3200 3516 3840 4000 4395 4688 4800 5860 6000 6400 7032 7325 8000 8790 9376 9600 11720 12000 14064 14650 16000 17580 18752 19200 21975 23440 24000 28128 29300 32000 35160 36625 37504 43950 46880 48000 56256 58600 70320 73250 75008 87900 93760 96000 109875 112512 117200 140640 146500 175800 187520 219750 225024 234400 281280 293000 351600 375040 439500 468800 562560 586000 703200 879000 937600 1125120 1172000 1406400 1758000 1875200 2344000 2812800 3516000 4688000 5625600 7032000 9376000 14064000 28128000
• Sum of all divisors σ(n): 93746016
• Sum of proper divisors (its aliquot sum) s(n): 65618016
• 28128000 is an abundant number, because the sum of its proper divisors (65618016) is greater than itself. Its abundance is 37490016

Bases of 28128000

• Binary: 1101011010011001100000000₂
• Hexadecimal: 0x1AD3300
• Base-36: GQVPC

Squares and roots of 28128000

• 28128000 squared (28128000²) is 791184384000000
• 28128000 cubed (28128000³) is 22254434353152000000000
• The square root of 28128000 is 5303.5836940695
• The cube root of 28128000 is 304.1209121977

Scales and comparisons

• 28,128,000 seconds is equal to 46 weeks, 3 days, 13 hours, 20 minutes.
• To count from 1 to 28,128,000 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 28128000 cubic inches would be around 25.3 feet tall.

Recreational maths with 28128000

• 28128000 backwards is 00082182
• The number of decimal digits it has is: 8
• The sum of 28128000's digits is 21
• More coming soon!