129908701320

Names of 129908701320

• Cardinal: 129908701320 can be written as One hundred twenty-nine billion, nine hundred eight million, seven hundred one thousand, three hundred twenty.

Scientific notation

• Scientific notation: 1.2990870132 × 10¹¹

Factors of 129908701320

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8524330

Divisors of 129908701320

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 127 254 381 508 635 762 1016 1270 1524 1905 2540 3048 3810 5080 7620 15240 8524193 17048386 25572579 34096772 42620965 51145158 68193544 85241930 102290316 127862895 170483860 204580632 255725790 340967720 511451580 1022903160 1082572511 2165145022 3247717533 4330290044 5412862555 6495435066 8660580088 10825725110 12990870132 16238587665 21651450220 25981740264 32477175330 43302900440 64954350660 129908701320
• Sum of all divisors σ(n): 392794859520
• Sum of proper divisors (its aliquot sum) s(n): 262886158200
• 129908701320 is an abundant number, because the sum of its proper divisors (262886158200) is greater than itself. Its abundance is 132977456880

Bases of 129908701320

• Binary: 1111000111111001010010111100010001000₂
• Hexadecimal: 0x1E3F297888
• Base-36: 1NOGABGO

Squares and roots of 129908701320

• 129908701320 squared (129908701320²) is 16876270678648969742400
• 129908701320 cubed (129908701320³) is 2192374406988082711391158939968000
• The square root of 129908701320 is 360428.4968201043
• The cube root of 129908701320 is 5064.6108424489

Scales and comparisons

• 129,908,701,320 seconds is equal to 4,130 years, 36 weeks, 22 hours, 22 minutes.
• To count from 1 to 129,908,701,320 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 129908701320 cubic inches would be around 422.1 feet tall.

Recreational maths with 129908701320

• 129908701320 backwards is 023107809921
• The number of decimal digits it has is: 12
• The sum of 129908701320's digits is 42
• More coming soon!