18181382355

Names of 18181382355

• Cardinal: 18181382355 can be written as Eighteen billion, one hundred eighty-one million, three hundred eighty-two thousand, three hundred fifty-five.

Scientific notation

• Scientific notation: 1.8181382355 × 10¹⁰

Factors of 18181382355

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6518

Divisors of 18181382355

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 5 9 15 23 31 45 69 89 93 115 155 207 267 279 345 445 465 713 801 1035 1335 1395 2047 2139 2759 3565 4005 6141 6367 6417 8277 10235 10695 13795 18423 19101 24831 30705 31835 32085 41385 57303 63457 92115 95505 124155 146441 190371 197377 286515 317285 439323 566663 571113 592131 732205 951855 986885 1317969 1699989 1776393 2196615 2833315 2855565 2960655 4539671 5099967 6589845 8499945 8881965 13033249 13619013 17566553 22698355 25499835 39099747 40857039 52699659 65166245 68095065 87832765 117299241 158098977 195498735 204285195 263498295 404030719 586496205 790494885 1212092157 2020153595 3636276471 6060460785 18181382355
• Sum of all divisors σ(n): 34332180480
• Sum of proper divisors (its aliquot sum) s(n): 16150798125
• 18181382355 is a deficient number, because the sum of its proper divisors (16150798125) is less than itself. Its deficiency is 2030584230

Bases of 18181382355

• Binary: 10000111011101100011110000011010011₂
• Hexadecimal: 0x43BB1E0D3
• Base-36: 8COQ4ER

Squares and roots of 18181382355

• 18181382355 squared (18181382355²) is 330562664338705346025
• 18181382355 cubed (18181382355³) is 6010086192629525121763104388875
• The square root of 18181382355 is 134838.3563938689
• The cube root of 18181382355 is 2629.5148837533

Scales and comparisons

• 18,181,382,355 seconds is equal to 578 years, 5 weeks, 5 days, 15 hours, 59 minutes, 15 seconds.
• To count from 1 to 18,181,382,355 would take you about one thousand, one hundred fifty-six 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 18181382355 cubic inches would be around 219.1 feet tall.

Recreational maths with 18181382355

• 18181382355 backwards is 55328318181
• 18181382355 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18181382355's digits is 45
• More coming soon!