138745379218

Names of 138745379218

• Cardinal: 138745379218 can be written as One hundred thirty-eight billion, seven hundred forty-five million, three hundred seventy-nine thousand, two hundred eighteen.

Scientific notation

• Scientific notation: 1.38745379218 × 10¹¹

Factors of 138745379218

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1807

Divisors of 138745379218

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 37 43 74 86 167 191 334 382 1367 1591 2734 3182 6179 7067 7181 8213 12358 14134 14362 16426 31897 50579 58781 63794 101158 117562 228289 261097 265697 303881 456578 522194 531394 607762 1180189 1371571 2174897 2360378 2743142 4349794 8446693 9660589 9816427 11227171 16893386 19321178 19632854 22454342 43603199 50748127 87206398 101496254 363207799 415405327 726415598 830810654 1613318363 1874937557 3226636726 3749875114 69372689609 138745379218
• Sum of all divisors σ(n): 221337059328
• Sum of proper divisors (its aliquot sum) s(n): 82591680110
• 138745379218 is a deficient number, because the sum of its proper divisors (82591680110) is less than itself. Its deficiency is 56153699108

Bases of 138745379218

• Binary: 10000001001101110111100111100110010010₂
• Hexadecimal: 0x204DDE7992
• Base-36: 1RQLEZRM

Squares and roots of 138745379218

• 138745379218 squared (138745379218²) is 19250280254346626291524
• 138745379218 cubed (138745379218³) is 2670887433942100157636426399148232
• The square root of 138745379218 is 372485.4080605037
• The cube root of 138745379218 is 5176.9365569083

Scales and comparisons

• 138,745,379,218 seconds is equal to 4,411 years, 35 weeks, 7 hours, 6 minutes, 58 seconds.
• To count from 1 to 138,745,379,218 would take you about eight thousand, eight hundred twenty-three 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 138745379218 cubic inches would be around 431.4 feet tall.

Recreational maths with 138745379218

• 138745379218 backwards is 812973547831
• The number of decimal digits it has is: 12
• The sum of 138745379218's digits is 58
• More coming soon!