129789064742520

Names of 129789064742520

• Cardinal: 129789064742520 can be written as One hundred twenty-nine trillion, seven hundred eighty-nine billion, sixty-four million, seven hundred forty-two thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.2978906474252 × 10¹⁴

Factors of 129789064742520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4850114760

Divisors of 129789064742520

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 223 446 669 892 1115 1338 1784 2230 2676 3345 4460 5352 6690 8920 13380 26760 4850114527 9700229054 14550343581 19400458108 24250572635 29100687162 38800916216 48501145270 58201374324 72751717905 97002290540 116402748648 145503435810 194004581080 291006871620 582013743240 1081575539521 2163151079042 3244726618563 4326302158084 5407877697605 6489453237126 8652604316168 10815755395210 12978906474252 16223633092815 21631510790420 25957812948504 32447266185630 43263021580840 64894532371260 129789064742520
• Sum of all divisors σ(n): 391113235537920
• Sum of proper divisors (its aliquot sum) s(n): 261324170795400
• 129789064742520 is an abundant number, because the sum of its proper divisors (261324170795400) is greater than itself. Its abundance is 131535106052880

Bases of 129789064742520

• Binary: 11101100000101011011111000110011000011001111000₂
• Hexadecimal: 0x760ADF198678
• Base-36: 1A089U3CZC

Squares and roots of 129789064742520

• 129789064742520 squared (129789064742520²) is 16845201326738048153895950400
• 129789064742520 cubed (129789064742520³) is 2186322925596788332210618871037246691008000
• The square root of 129789064742520 is 11392500.3727241545
• The cube root of 129789064742520 is 50630.5565074581

Scales and comparisons

• 129,789,064,742,520 seconds is equal to 4,126,890 years, 41 weeks, 2 days, 8 hours, 2 minutes.
• To count from 1 to 129,789,064,742,520 would take you about ten million, three hundred seventeen thousand, two hundred twenty-six 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 129789064742520 cubic inches would be around 4219.2 feet tall.

Recreational maths with 129789064742520

• 129789064742520 backwards is 025247460987921
• The number of decimal digits it has is: 15
• The sum of 129789064742520's digits is 66
• More coming soon!