8220420

Names of 8220420

• Cardinal: 8220420 can be written as Eight million, two hundred twenty thousand, four hundred twenty.

Scientific notation

• Scientific notation: 8.22042 × 10⁶

Factors of 8220420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1194

Divisors of 8220420

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 90 108 117 130 135 156 180 195 234 260 270 351 390 468 540 585 702 780 1170 1171 1404 1755 2340 2342 3510 3513 4684 5855 7020 7026 10539 11710 14052 15223 17565 21078 23420 30446 31617 35130 42156 45669 52695 60892 63234 70260 76115 91338 105390 126468 137007 152230 158085 182676 210780 228345 274014 304460 316170 411021 456690 548028 632340 685035 822042 913380 1370070 1644084 2055105 2740140 4110210 8220420
• Sum of all divisors σ(n): 27565440
• Sum of proper divisors (its aliquot sum) s(n): 19345020
• 8220420 is an abundant number, because the sum of its proper divisors (19345020) is greater than itself. Its abundance is 11124600

Bases of 8220420

• Binary: 11111010110111100000100₂
• Hexadecimal: 0x7D6F04
• Base-36: 4W6X0

Squares and roots of 8220420

• 8220420 squared (8220420²) is 67575304976400
• 8220420 cubed (8220420³) is 555497388534098088000
• The square root of 8220420 is 2867.1274823419
• The cube root of 8220420 is 201.8202171253

Scales and comparisons

• 8,220,420 seconds is equal to 13 weeks, 4 days, 3 hours, 27 minutes.
• To count from 1 to 8,220,420 would take you about twenty 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 8220420 cubic inches would be around 16.8 feet tall.

Recreational maths with 8220420

• 8220420 backwards is 0240228
• 8220420 is a Harshad number.
• The number of decimal digits it has is: 7
• The sum of 8220420's digits is 18
• More coming soon!