129829788121427185680

Names of 129829788121427185680

• Cardinal: 129829788121427185680 can be written as One hundred twenty-nine quintillion, eight hundred twenty-nine quadrillion, seven hundred eighty-eight trillion, one hundred twenty-one billion, four hundred twenty-seven million, one hundred eighty-five thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.2982978812142718568 × 10²⁰

Factors of 129829788121427185680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8586626198507106

Divisors of 129829788121427185680

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 54 56 60 63 70 72 80 84 90 105 108 112 120 126 135 140 144 168 180 189 210 216 240 252 270 280 315 336 360 378 420 432 504 540 560 630 720 756 840 945 1008 1080 1260 1512 1680 1890 2160 2520 3024 3780 5040 7560 15120 8586626198507089 17173252397014178 25759878595521267 34346504794028356 42933130992535445 51519757191042534 60106383389549623 68693009588056712 77279635786563801 85866261985070890 103039514382085068 120212766779099246 128799392977606335 137386019176113424 154559271573127602 171732523970141780 180319150168648869 206079028764170136 231838907359691403 240425533558198492 257598785955212670 300531916947748115 309118543146255204 343465047940283560 360638300337297738 386398178932819005 412158057528340272 463677814719382806 480851067116396984 515197571910425340 540957450505946607 601063833895496230 618237086292510408 686930095880567120 721276600674595476 772796357865638010 901595750843244345 927355629438765612 961702134232793968 1030395143820850680 1081914901011893214 1159194536798457015 1202127667790992460 1236474172585020816 1442553201349190952 1545592715731276020 1622872351517839821 1803191501686488690 1854711258877531224 2060790287641701360 2163829802023786428 2318389073596914030 2404255335581984920 2704787252529733035 2885106402698381904 3091185431462552040 3245744703035679642 3606383003372977380 3709422517755062448 4327659604047572856 4636778147193828060 4808510671163969840 5409574505059466070 6182370862925104080 6491489406071359284 7212766006745954760 8114361757589199105 8655319208095145712 9273556294387656120 10819149010118932140 12982978812142718568 14425532013491909520 16228723515178398210 18547112588775312240 21638298020237864280 25965957624285437136 32457447030356796420 43276596040475728560 64914894060713592840 129829788121427185680
• Sum of all divisors σ(n): 511075991335141996800
• Sum of proper divisors (its aliquot sum) s(n): 381246203213714811120
• 129829788121427185680 is an abundant number, because the sum of its proper divisors (381246203213714811120) is greater than itself. Its abundance is 251416415092287625440

Bases of 129829788121427185680

• Binary: 1110000100111000000000100000110110111000001111001011001000000010000₂
• Hexadecimal: 0x709C0106DC1E59010
• Base-36: REDW2W26GRFO0

Squares and roots of 129829788121427185680

• 129829788121427185680 squared (129829788121427185680²) is 16855773883654675563286633102165197062400
• 129829788121427185680 cubed (129829788121427185680³) is 2188381551937572378740915165511254464348262564929835346432000
• The square root of 129829788121427185680 is 11394287521.4480692723
• The cube root of 129829788121427185680 is 5063585.1333933825

Scales and comparisons

• 129,829,788,121,427,185,680 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 129,829,788,121,427,185,680 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 129829788121427185680 cubic inches would be around 421965.4 feet tall.

Recreational maths with 129829788121427185680

• 129829788121427185680 backwards is 086581724121887928921
• The number of decimal digits it has is: 21
• The sum of 129829788121427185680's digits is 99
• More coming soon!