28227420

Names of 28227420

• Cardinal: 28227420 can be written as Twenty-eight million, two hundred twenty-seven thousand, four hundred twenty.

Scientific notation

• Scientific notation: 2.822742 × 10⁷

Factors of 28227420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4044

Divisors of 28227420

• 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 1404 1755 2340 3510 4021 7020 8042 12063 16084 20105 24126 36189 40210 48252 52273 60315 72378 80420 104546 108567 120630 144756 156819 180945 209092 217134 241260 261365 313638 361890 434268 470457 522730 542835 627276 723780 784095 940914 1045460 1085670 1411371 1568190 1881828 2171340 2352285 2822742 3136380 4704570 5645484 7056855 9409140 14113710 28227420
• Sum of all divisors σ(n): 94597440
• Sum of proper divisors (its aliquot sum) s(n): 66370020
• 28227420 is an abundant number, because the sum of its proper divisors (66370020) is greater than itself. Its abundance is 38142600

Bases of 28227420

• Binary: 1101011101011011101011100₂
• Hexadecimal: 0x1AEB75C
• Base-36: GT0F0

Squares and roots of 28227420

• 28227420 squared (28227420²) is 796787239856400
• 28227420 cubed (28227420³) is 22491248070067342488000
• The square root of 28227420 is 5312.9483340233
• The cube root of 28227420 is 304.4788016983

Scales and comparisons

• 28,227,420 seconds is equal to 46 weeks, 4 days, 16 hours, 57 minutes.
• To count from 1 to 28,227,420 would take you about eighteen 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 28227420 cubic inches would be around 25.4 feet tall.

Recreational maths with 28227420

• 28227420 backwards is 02472282
• 28227420 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28227420's digits is 27
• More coming soon!