20280000

Names of 20280000

• Cardinal: 20280000 can be written as Twenty million, two hundred eighty thousand.

Scientific notation

• Scientific notation: 2.028 × 10⁷

Factors of 20280000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 23

Divisors of 20280000

• Number of divisors d(n): 210
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 25 26 30 32 39 40 48 50 52 60 64 65 75 78 80 96 100 104 120 125 130 150 156 160 169 192 195 200 208 240 250 260 300 312 320 325 338 375 390 400 416 480 500 507 520 600 624 625 650 676 750 780 800 832 845 960 975 1000 1014 1040 1200 1248 1250 1300 1352 1500 1560 1600 1625 1690 1875 1950 2000 2028 2080 2400 2496 2500 2535 2600 2704 3000 3120 3250 3380 3750 3900 4000 4056 4160 4225 4800 4875 5000 5070 5200 5408 6000 6240 6500 6760 7500 7800 8000 8112 8125 8450 9750 10000 10140 10400 10816 12000 12480 12675 13000 13520 15000 15600 16224 16250 16900 19500 20000 20280 20800 21125 24000 24375 25350 26000 27040 30000 31200 32448 32500 33800 39000 40000 40560 42250 48750 50700 52000 54080 60000 62400 63375 65000 67600 78000 81120 84500 97500 101400 104000 105625 120000 126750 130000 135200 156000 162240 169000 195000 202800 211250 253500 260000 270400 312000 316875 338000 390000 405600 422500 507000 520000 633750 676000 780000 811200 845000 1014000 1267500 1352000 1560000 1690000 2028000 2535000 3380000 4056000 5070000 6760000 10140000 20280000
• Sum of all divisors σ(n): 72604884
• Sum of proper divisors (its aliquot sum) s(n): 52324884
• 20280000 is an abundant number, because the sum of its proper divisors (52324884) is greater than itself. Its abundance is 32044884

Bases of 20280000

• Binary: 1001101010111001011000000₂
• Hexadecimal: 0x13572C0
• Base-36: C2O5C

Squares and roots of 20280000

• 20280000 squared (20280000²) is 411278400000000
• 20280000 cubed (20280000³) is 8340725952000000000000
• The square root of 20280000 is 4503.3320996791
• The cube root of 20280000 is 272.7026240349

Scales and comparisons

• 20,280,000 seconds is equal to 33 weeks, 3 days, 17 hours, 20 minutes.
• To count from 1 to 20,280,000 would take you about fifty 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 20280000 cubic inches would be around 22.7 feet tall.

Recreational maths with 20280000

• 20280000 backwards is 00008202
• 20280000 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20280000's digits is 12
• More coming soon!