129944665728

Names of 129944665728

• Cardinal: 129944665728 can be written as One hundred twenty-nine billion, nine hundred forty-four million, six hundred sixty-five thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.29944665728 × 10¹¹

Factors of 129944665728

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 112799194

Divisors of 129944665728

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 384 576 1152 112799189 225598378 338397567 451196756 676795134 902393512 1015192701 1353590268 1804787024 2030385402 2707180536 3609574048 4060770804 5414361072 7219148096 8121541608 10828722144 14438296192 16243083216 21657444288 32486166432 43314888576 64972332864 129944665728
• Sum of all divisors σ(n): 373929314850
• Sum of proper divisors (its aliquot sum) s(n): 243984649122
• 129944665728 is an abundant number, because the sum of its proper divisors (243984649122) is greater than itself. Its abundance is 114039983394

Bases of 129944665728

• Binary: 1111001000001010011100011111010000000₂
• Hexadecimal: 0x1E414E3E80
• Base-36: 1NP1P5S0

Squares and roots of 129944665728

• 129944665728 squared (129944665728²) is 16885616151161657769984
• 129944665728 cubed (129944665728³) is 2194195746374019537810904791908352
• The square root of 129944665728 is 360478.3845503083
• The cube root of 129944665728 is 5065.0781678929

Scales and comparisons

• 129,944,665,728 seconds is equal to 4,131 years, 43 weeks, 4 days, 4 hours, 28 minutes, 48 seconds.
• To count from 1 to 129,944,665,728 would take you about eight thousand, two hundred sixty-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 129944665728 cubic inches would be around 422.1 feet tall.

Recreational maths with 129944665728

• 129944665728 backwards is 827566449921
• The number of decimal digits it has is: 12
• The sum of 129944665728's digits is 63
• More coming soon!