6561000

Names of 6561000

• Cardinal: 6561000 can be written as Six million, five hundred sixty-one thousand.

Scientific notation

• Scientific notation: 6.561 × 10⁶

Factors of 6561000

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 10

Divisors of 6561000

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 72 75 81 90 100 108 120 125 135 150 162 180 200 216 225 243 250 270 300 324 360 375 405 450 486 500 540 600 648 675 729 750 810 900 972 1000 1080 1125 1215 1350 1458 1500 1620 1800 1944 2025 2187 2250 2430 2700 2916 3000 3240 3375 3645 4050 4374 4500 4860 5400 5832 6075 6561 6750 7290 8100 8748 9000 9720 10125 10935 12150 13122 13500 14580 16200 17496 18225 20250 21870 24300 26244 27000 29160 30375 32805 36450 40500 43740 48600 52488 54675 60750 65610 72900 81000 87480 91125 109350 121500 131220 145800 164025 182250 218700 243000 262440 273375 328050 364500 437400 546750 656100 729000 820125 1093500 1312200 1640250 2187000 3280500 6561000
• Sum of all divisors σ(n): 23027940
• Sum of proper divisors (its aliquot sum) s(n): 16466940
• 6561000 is an abundant number, because the sum of its proper divisors (16466940) is greater than itself. Its abundance is 9905940

Bases of 6561000

• Binary: 11001000001110011101000₂
• Hexadecimal: 0x641CE8
• Base-36: 3WMI0

Squares and roots of 6561000

• 6561000 squared (6561000²) is 43046721000000
• 6561000 cubed (6561000³) is 282429536481000000000
• The square root of 6561000 is 2561.4449047363
• The cube root of 6561000 is 187.2075440747

Scales and comparisons

• 6,561,000 seconds is equal to 10 weeks, 5 days, 22 hours, 30 minutes.
• To count from 1 to 6,561,000 would take you about sixteen 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 6561000 cubic inches would be around 15.6 feet tall.

Recreational maths with 6561000

• 6561000 backwards is 0001656
• 6561000 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 6561000's digits is 18
• More coming soon!