18197120249

Names of 18197120249

• Cardinal: 18197120249 can be written as Eighteen billion, one hundred ninety-seven million, one hundred twenty thousand, two hundred forty-nine.

Scientific notation

• Scientific notation: 1.8197120249 × 10¹⁰

Factors of 18197120249

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 111

Divisors of 18197120249

• Number of divisors d(n): 108
• Complete list of divisors:
  1 7 11 19 31 43 49 77 133 209 217 301 341 473 539 589 817 931 961 1333 1463 1519 1849 2107 2387 3311 4123 5719 6479 6727 8987 9331 10241 10571 12943 14663 16709 18259 20339 23177 25327 28861 35131 40033 41323 45353 47089 57319 62909 65317 73997 90601 102641 127813 142373 177289 200849 245917 278597 289261 317471 386441 401233 440363 454553 517979 630509 718487 785137 894691 996611 1089061 1241023 1405943 1721419 1776889 1950179 2024827 2705087 2808631 3181871 4413563 5495959 7623427 8636507 9841601 11979671 12438223 13651253 18935609 19545779 22273097 30894941 33760891 38471713 53363989 60455549 83857697 87067561 136820453 236326237 371369801 423188843 587003879 957743171 1654283659 2599588607 18197120249
• Sum of all divisors σ(n): 25714966320
• Sum of proper divisors (its aliquot sum) s(n): 7517846071
• 18197120249 is a deficient number, because the sum of its proper divisors (7517846071) is less than itself. Its deficiency is 10679274178

Bases of 18197120249

• Binary: 10000111100101000100000010011111001₂
• Hexadecimal: 0x43CA204F9
• Base-36: 8CY3FUH

Squares and roots of 18197120249

• 18197120249 squared (18197120249²) is 331135185356565822001
• 18197120249 cubed (18197120249³) is 6025706786608332204635726798249
• The square root of 18197120249 is 134896.7021427879
• The cube root of 18197120249 is 2630.2733719509

Scales and comparisons

• 18,197,120,249 seconds is equal to 578 years, 31 weeks, 5 days, 19 hours, 37 minutes, 29 seconds.
• To count from 1 to 18,197,120,249 would take you about one thousand, one hundred fifty-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 18197120249 cubic inches would be around 219.2 feet tall.

Recreational maths with 18197120249

• 18197120249 backwards is 94202179181
• The number of decimal digits it has is: 11
• The sum of 18197120249's digits is 44
• More coming soon!