18129238876641

Names of 18129238876641

• Cardinal: 18129238876641 can be written as Eighteen trillion, one hundred twenty-nine billion, two hundred thirty-eight million, eight hundred seventy-six thousand, six hundred forty-one.

Scientific notation

• Scientific notation: 1.8129238876641 × 10¹³

Factors of 18129238876641

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 928

Divisors of 18129238876641

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 17 31 51 93 289 527 867 877 1581 2631 8959 14909 26877 27187 44727 81561 253453 462179 760359 769129 1386537 2307387 7857043 13075193 23571129 23842999 39225579 71528997 222278281 405330983 666834843 674526133 1215992949 2023578399 6890626711 11466944261 20671880133 20910310123 34400832783 62730930369 194938052437 355475272091 584814157311 1066425816273 6043079625547 18129238876641
• Sum of all divisors σ(n): 26536437117440
• Sum of proper divisors (its aliquot sum) s(n): 8407198240799
• 18129238876641 is a deficient number, because the sum of its proper divisors (8407198240799) is less than itself. Its deficiency is 9722040635842

Bases of 18129238876641

• Binary: 100000111110100001010110101111110000111100001₂
• Hexadecimal: 0x107D0AD7E1E1
• Base-36: 6FCGGQSBL

Squares and roots of 18129238876641

• 18129238876641 squared (18129238876641²) is 328669302246311427615442881
• 18129238876641 cubed (18129238876641³) is 5958524291842300283868832681284140642721
• The square root of 18129238876641 is 4257844.3931925223
• The cube root of 18129238876641 is 26269.9869555775

Scales and comparisons

• 18,129,238,876,641 seconds is equal to 576,453 years, 37 weeks, 2 days, 15 hours, 57 minutes, 21 seconds.
• To count from 1 to 18,129,238,876,641 would take you about one million, four hundred forty-one thousand, one hundred thirty-four 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 18129238876641 cubic inches would be around 2189.2 feet tall.

Recreational maths with 18129238876641

• 18129238876641 backwards is 14667883292181
• The number of decimal digits it has is: 14
• The sum of 18129238876641's digits is 66
• More coming soon!