18678018825

Names of 18678018825

• Cardinal: 18678018825 can be written as Eighteen billion, six hundred seventy-eight million, eighteen thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 1.8678018825 × 10¹⁰

Factors of 18678018825

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4982

Divisors of 18678018825

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 5 9 15 23 25 27 45 69 75 81 115 135 207 225 243 345 405 575 621 675 729 1035 1215 1725 1863 2025 2187 3105 3645 4951 5175 5589 6075 6561 9315 10935 14853 15525 16767 18225 24755 27945 32805 44559 46575 50301 54675 74265 83835 113873 123775 133677 139725 150903 164025 222795 251505 341619 371325 401031 419175 569365 668385 754515 1024857 1113975 1203093 1257525 1708095 2005155 2846825 3074571 3341925 3609279 3772575 5124285 6015465 8540475 9223713 10025775 10827837 15372855 18046395 25621425 27671139 30077325 32483511 46118565 54139185 76864275 83013417 90231975 138355695 162417555 230592825 249040251 270695925 415067085 691778475 747120753 812087775 1245201255 2075335425 3735603765 6226006275 18678018825
• Sum of all divisors σ(n): 36257078208
• Sum of proper divisors (its aliquot sum) s(n): 17579059383
• 18678018825 is a deficient number, because the sum of its proper divisors (17579059383) is less than itself. Its deficiency is 1098959442

Bases of 18678018825

• Binary: 10001011001010010111111001100001001₂
• Hexadecimal: 0x4594BF309
• Base-36: 8KWERK9

Squares and roots of 18678018825

• 18678018825 squared (18678018825²) is 348868387227054380625
• 18678018825 cubed (18678018825³) is 6516170304074311270612465265625
• The square root of 18678018825 is 136667.5485439027
• The cube root of 18678018825 is 2653.2424449503

Scales and comparisons

• 18,678,018,825 seconds is equal to 593 years, 46 weeks, 6 days, 18 hours, 33 minutes, 45 seconds.
• To count from 1 to 18,678,018,825 would take you about one thousand, one hundred eighty-seven years!

  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 18678018825 cubic inches would be around 221.1 feet tall.

Recreational maths with 18678018825

• 18678018825 backwards is 52881087681
• The number of decimal digits it has is: 11
• The sum of 18678018825's digits is 54
• More coming soon!