18087072971

Names of 18087072971

• Cardinal: 18087072971 can be written as Eighteen billion, eighty-seven million, seventy-two thousand, nine hundred seventy-one.

Scientific notation

• Scientific notation: 1.8087072971 × 10¹⁰

Factors of 18087072971

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 840

Divisors of 18087072971

• Number of divisors d(n): 64
• Complete list of divisors:
  1 11 19 23 67 89 209 253 437 631 737 979 1273 1541 1691 2047 4807 5963 6941 11989 14003 14513 16951 18601 22517 29279 38893 42277 56159 65593 113297 131879 137149 159643 275747 322069 427823 465047 617749 803263 972371 1067021 1246267 1291657 1508639 2605831 3033217 3762653 8835893 10696081 11737231 14208227 18475049 24541483 28664141 41389183 71490407 86541019 203225539 269956313 786394477 951951209 1644279361 18087072971
• Sum of all divisors σ(n): 22278758400
• Sum of proper divisors (its aliquot sum) s(n): 4191685429
• 18087072971 is a deficient number, because the sum of its proper divisors (4191685429) is less than itself. Its deficiency is 13895387542

Bases of 18087072971

• Binary: 10000110110000100101101010011001011₂
• Hexadecimal: 0x43612D4CB
• Base-36: 8B4KQTN

Squares and roots of 18087072971

• 18087072971 squared (18087072971²) is 327142208658278766841
• 18087072971 cubed (18087072971³) is 5917044999896396059113062154611
• The square root of 18087072971 is 134488.1889646819
• The cube root of 18087072971 is 2624.9604454691

Scales and comparisons

• 18,087,072,971 seconds is equal to 575 years, 5 weeks, 6 days, 2 hours, 56 minutes, 11 seconds.
• To count from 1 to 18,087,072,971 would take you about one thousand, one hundred fifty 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 18087072971 cubic inches would be around 218.7 feet tall.

Recreational maths with 18087072971

• 18087072971 backwards is 17927078081
• The number of decimal digits it has is: 11
• The sum of 18087072971's digits is 50
• More coming soon!