18228540

Names of 18228540

• Cardinal: 18228540 can be written as Eighteen million, two hundred twenty-eight thousand, five hundred forty.

Scientific notation

• Scientific notation: 1.822854 × 10⁷

Factors of 18228540

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 481

Divisors of 18228540

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 71 110 132 142 165 213 220 284 330 355 389 426 660 710 778 781 852 1065 1167 1420 1556 1562 1945 2130 2334 2343 3124 3890 3905 4260 4279 4668 4686 5835 7780 7810 8558 9372 11670 11715 12837 15620 17116 21395 23340 23430 25674 27619 42790 46860 51348 55238 64185 82857 85580 110476 128370 138095 165714 256740 276190 303809 331428 414285 552380 607618 828570 911427 1215236 1519045 1657140 1822854 3038090 3645708 4557135 6076180 9114270 18228540
• Sum of all divisors σ(n): 56609280
• Sum of proper divisors (its aliquot sum) s(n): 38380740
• 18228540 is an abundant number, because the sum of its proper divisors (38380740) is greater than itself. Its abundance is 20152200

Bases of 18228540

• Binary: 1000101100010010100111100₂
• Hexadecimal: 0x116253C
• Base-36: AUP8C

Squares and roots of 18228540

• 18228540 squared (18228540²) is 332279670531600
• 18228540 cubed (18228540³) is 6056973265472091864000
• The square root of 18228540 is 4269.4894308337
• The cube root of 18228540 is 263.1786340569

Scales and comparisons

• 18,228,540 seconds is equal to 30 weeks, 23 hours, 29 minutes.
• To count from 1 to 18,228,540 would take you about forty-five 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 18228540 cubic inches would be around 21.9 feet tall.

Recreational maths with 18228540

• 18228540 backwards is 04582281
• 18228540 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 18228540's digits is 30
• More coming soon!