129916721536

Names of 129916721536

• Cardinal: 129916721536 can be written as One hundred twenty-nine billion, nine hundred sixteen million, seven hundred twenty-one thousand, five hundred thirty-six.

Scientific notation

• Scientific notation: 1.29916721536 × 10¹¹

Factors of 129916721536

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3759

Divisors of 129916721536

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 343 392 448 686 784 896 1129 1372 1568 2258 2621 2744 3136 4516 5242 5488 6272 7903 9032 10484 10976 15806 18064 18347 20968 21952 31612 36128 36694 41936 43904 55321 63224 72256 73388 83872 110642 126448 128429 144512 146776 167744 221284 252896 256858 293552 335488 387247 442568 505792 513716 587104 774494 885136 899003 1011584 1027432 1174208 1548988 1770272 1798006 2054864 2348416 2959109 3097976 3540544 3596012 4109728 5918218 6195952 7081088 7192024 8219456 11836436 12391904 14384048 16438912 20713763 23672872 24783808 28768096 41427526 47345744 49567616 57536192 82855052 94691488 115072384 144996341 165710104 189382976 289992682 331420208 378765952 579985364 662840416 1014974387 1159970728 1325680832 2029948774 2319941456 2651361664 4059897548 4639882912 8119795096 9279765824 16239590192 18559531648 32479180384 64958360768 129916721536
• Sum of all divisors σ(n): 302211720000
• Sum of proper divisors (its aliquot sum) s(n): 172294998464
• 129916721536 is an abundant number, because the sum of its proper divisors (172294998464) is greater than itself. Its abundance is 42378276928

Bases of 129916721536

• Binary: 1111000111111101000111101100110000000₂
• Hexadecimal: 0x1E3FA3D980
• Base-36: 1NOL27WG

Squares and roots of 129916721536

• 129916721536 squared (129916721536²) is 16878354534662566199296
• 129916721536 cubed (129916721536³) is 2192780486065639472637104311238656
• The square root of 129916721536 is 360439.6225944091
• The cube root of 129916721536 is 5064.7150654829

Scales and comparisons

• 129,916,721,536 seconds is equal to 4,130 years, 49 weeks, 2 days, 18 hours, 12 minutes, 16 seconds.
• To count from 1 to 129,916,721,536 would take you about eight thousand, two hundred sixty-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 129916721536 cubic inches would be around 422.1 feet tall.

Recreational maths with 129916721536

• 129916721536 backwards is 635127619921
• The number of decimal digits it has is: 12
• The sum of 129916721536's digits is 52
• More coming soon!