13558812981

Names of 13558812981

• Cardinal: 13558812981 can be written as Thirteen billion, five hundred fifty-eight million, eight hundred twelve thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 1.3558812981 × 10¹⁰

Factors of 13558812981

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1289

Divisors of 13558812981

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 21 49 67 147 193 201 343 469 579 1019 1029 1351 1407 3057 3283 4053 7133 9457 9849 12931 21399 22981 28371 38793 49931 66199 68273 68943 90517 149793 196667 198597 204819 271551 349517 477911 590001 633619 1048551 1376669 1433733 1900857 3345377 4130007 4435333 9636683 10036131 13176689 13305999 23417639 28910049 39530067 67456781 70252917 92236823 202370343 276710469 645657761 1936973283 4519604327 13558812981
• Sum of all divisors σ(n): 21529344000
• Sum of proper divisors (its aliquot sum) s(n): 7970531019
• 13558812981 is a deficient number, because the sum of its proper divisors (7970531019) is less than itself. Its deficiency is 5588281962

Bases of 13558812981

• Binary: 1100101000001010110001000100110101₂
• Hexadecimal: 0x3282B1135
• Base-36: 688KF1X

Squares and roots of 13558812981

• 13558812981 squared (13558812981²) is 183841409453734106361
• 13558812981 cubed (13558812981³) is 2492671288946626120249961472141
• The square root of 13558812981 is 116442.3161097375
• The cube root of 13558812981 is 2384.5543387147

Scales and comparisons

• 13,558,812,981 seconds is equal to 431 years, 6 weeks, 4 days, 16 hours, 56 minutes, 21 seconds.
• To count from 1 to 13,558,812,981 would take you about eight hundred sixty-two 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 13558812981 cubic inches would be around 198.7 feet tall.

Recreational maths with 13558812981

• 13558812981 backwards is 18921885531
• The number of decimal digits it has is: 11
• The sum of 13558812981's digits is 51
• More coming soon!