129926847520

Names of 129926847520

• Cardinal: 129926847520 can be written as One hundred twenty-nine billion, nine hundred twenty-six million, eight hundred forty-seven thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.2992684752 × 10¹¹

Factors of 129926847520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 77190

Divisors of 129926847520

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 61 80 122 160 173 244 305 346 488 610 692 865 976 1220 1384 1730 1952 2440 2768 3460 4880 5536 6920 9760 10553 13840 21106 27680 42212 52765 76949 84424 105530 153898 168848 211060 307796 337696 384745 422120 615592 769490 844240 1231184 1538980 1688480 2462368 3077960 4693889 6155920 9387778 12311840 13312177 18775556 23469445 26624354 37551112 46938890 53248708 66560885 75102224 93877780 106497416 133121770 150204448 187755560 212994832 266243540 375511120 425989664 532487080 751022240 812042797 1064974160 1624085594 2129948320 3248171188 4060213985 6496342376 8120427970 12992684752 16240855940 25985369504 32481711880 64963423760 129926847520
• Sum of all divisors σ(n): 313791634800
• Sum of proper divisors (its aliquot sum) s(n): 183864787280
• 129926847520 is an abundant number, because the sum of its proper divisors (183864787280) is greater than itself. Its abundance is 53937939760

Bases of 129926847520

• Binary: 1111001000000001111100101110000100000₂
• Hexadecimal: 0x1E403E5C20
• Base-36: 1NOR395S

Squares and roots of 129926847520

• 129926847520 squared (129926847520²) is 16880985706485330150400
• 129926847520 cubed (129926847520³) is 2193293255873818965567879467008000
• The square root of 129926847520 is 360453.6690338995
• The cube root of 129926847520 is 5064.8466469319

Scales and comparisons

• 129,926,847,520 seconds is equal to 4,131 years, 14 weeks, 22 hours, 58 minutes, 40 seconds.
• To count from 1 to 129,926,847,520 would take you about eight thousand, two 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 129926847520 cubic inches would be around 422.1 feet tall.

Recreational maths with 129926847520

• 129926847520 backwards is 025748629921
• The number of decimal digits it has is: 12
• The sum of 129926847520's digits is 55
• More coming soon!