129952746720

Names of 129952746720

• Cardinal: 129952746720 can be written as One hundred twenty-nine billion, nine hundred fifty-two million, seven hundred forty-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.2995274672 × 10¹¹

Factors of 129952746720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 540566

Divisors of 129952746720

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 167 180 240 288 334 360 480 501 668 720 835 1002 1336 1440 1503 1670 2004 2505 2672 3006 3340 4008 5010 5344 6012 6680 7515 8016 10020 12024 13360 15030 16032 20040 24048 26720 30060 40080 48096 60120 80160 120240 240480 540389 1080778 1621167 2161556 2701945 3242334 4323112 4863501 5403890 6484668 8105835 8646224 9727002 10807780 12969336 16211670 17292448 19454004 21615560 24317505 25938672 32423340 38908008 43231120 48635010 51877344 64846680 77816016 86462240 90244963 97270020 129693360 155632032 180489926 194540040 259386720 270734889 360979852 389080080 451224815 541469778 721959704 778160160 812204667 902449630 1082939556 1353674445 1443919408 1624409334 1804899260 2165879112 2707348890 2887838816 3248818668 3609798520 4061023335 4331758224 5414697780 6497637336 7219597040 8122046670 8663516448 10829395560 12995274672 14439194080 16244093340 21658791120 25990549344 32488186680 43317582240 64976373360 129952746720
• Sum of all divisors σ(n): 446120045280
• Sum of proper divisors (its aliquot sum) s(n): 316167298560
• 129952746720 is an abundant number, because the sum of its proper divisors (316167298560) is greater than itself. Its abundance is 186214551840

Bases of 129952746720

• Binary: 1111001000001110010011000110011100000₂
• Hexadecimal: 0x1E41C98CE0
• Base-36: 1NP6ID40

Squares and roots of 129952746720

• 129952746720 squared (129952746720²) is 16887716380072470758400
• 129952746720 cubed (129952746720³) is 2194605129418753047710961512448000
• The square root of 129952746720 is 360489.5930814091
• The cube root of 129952746720 is 5065.1831613211

Scales and comparisons

• 129,952,746,720 seconds is equal to 4,132 years, 4 weeks, 6 days, 17 hours, 12 minutes.
• To count from 1 to 129,952,746,720 would take you about eight thousand, two hundred sixty-four 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 129952746720 cubic inches would be around 422.1 feet tall.

Recreational maths with 129952746720

• 129952746720 backwards is 027647259921
• The number of decimal digits it has is: 12
• The sum of 129952746720's digits is 54
• More coming soon!