121729960638

Names of 121729960638

• Cardinal: 121729960638 can be written as One hundred twenty-one billion, seven hundred twenty-nine million, nine hundred sixty thousand, six hundred thirty-eight.

Scientific notation

• Scientific notation: 1.21729960638 × 10¹¹

Factors of 121729960638

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 47292166

Divisors of 121729960638

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 9 11 13 18 22 26 33 39 66 78 99 117 143 198 234 286 429 858 1287 2574 47292137 94584274 141876411 283752822 425629233 520213507 614797781 851258466 1040427014 1229595562 1560640521 1844393343 3121281042 3688786686 4681921563 5533180029 6762775591 9363843126 11066360058 13525551182 20288326773 40576653546 60864980319 121729960638
• Sum of all divisors σ(n): 309858088176
• Sum of proper divisors (its aliquot sum) s(n): 188128127538
• 121729960638 is an abundant number, because the sum of its proper divisors (188128127538) is greater than itself. Its abundance is 66398166900

Bases of 121729960638

• Binary: 1110001010111101010111100101010111110₂
• Hexadecimal: 0x1C57ABCABE
• Base-36: 1JX6VIRI

Squares and roots of 121729960638

• 121729960638 squared (121729960638²) is 14818183316929029367044
• 121729960638 cubed (121729960638³) is 1803816871896439023889812174414072
• The square root of 121729960638 is 348898.2095654835
• The cube root of 121729960638 is 4956.0136501077

Scales and comparisons

• 121,729,960,638 seconds is equal to 3,870 years, 33 weeks, 13 hours, 57 minutes, 18 seconds.
• To count from 1 to 121,729,960,638 would take you about seven thousand, seven hundred forty-one 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 121729960638 cubic inches would be around 413 feet tall.

Recreational maths with 121729960638

• 121729960638 backwards is 836069927121
• The number of decimal digits it has is: 12
• The sum of 121729960638's digits is 54
• More coming soon!