138990463815

Names of 138990463815

• Cardinal: 138990463815 can be written as One hundred thirty-eight billion, nine hundred ninety million, four hundred sixty-three thousand, eight hundred fifteen.

Scientific notation

• Scientific notation: 1.38990463815 × 10¹¹

Factors of 138990463815

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 8392

Divisors of 138990463815

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 7 15 21 35 105 181 543 905 1019 1267 2715 3057 3801 5095 6335 7133 7177 15285 19005 21399 21531 35665 35885 50239 106995 107655 150717 184439 251195 553317 753585 922195 1291073 1299037 2766585 3873219 3897111 6455365 6495185 7313363 9093259 19366095 19485555 21940089 27279777 36566815 45466295 51193541 109700445 136398885 153580623 255967705 767903115 1323718703 3971156109 6618593515 9266030921 19855780545 27798092763 46330154605 138990463815
• Sum of all divisors σ(n): 255844592640
• Sum of proper divisors (its aliquot sum) s(n): 116854128825
• 138990463815 is a deficient number, because the sum of its proper divisors (116854128825) is less than itself. Its deficiency is 22136334990

Bases of 138990463815

• Binary: 10000001011100011110100010101101000111₂
• Hexadecimal: 0x205C7A2B47
• Base-36: 1RUNC093

Squares and roots of 138990463815

• 138990463815 squared (138990463815²) is 19318349031508824354225
• 138990463815 cubed (138990463815³) is 2685066292029467546259100604868375
• The square root of 138990463815 is 372814.2484066295
• The cube root of 138990463815 is 5179.9830032661

Scales and comparisons

• 138,990,463,815 seconds is equal to 4,419 years, 24 weeks, 1 day, 22 hours, 10 minutes, 15 seconds.
• To count from 1 to 138,990,463,815 would take you about eight thousand, eight hundred thirty-eight 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 138990463815 cubic inches would be around 431.7 feet tall.

Recreational maths with 138990463815

• 138990463815 backwards is 518364099831
• The number of decimal digits it has is: 12
• The sum of 138990463815's digits is 57
• More coming soon!