20808931686400

Names of 20808931686400

• Cardinal: 20808931686400 can be written as Twenty trillion, eight hundred eight billion, nine hundred thirty-one million, six hundred eighty-six thousand, four hundred.

Scientific notation

• Scientific notation: 2.08089316864 × 10¹³

Factors of 20808931686400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 5361

Divisors of 20808931686400

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 20 22 25 26 32 40 44 50 52 55 64 65 80 88 100 104 110 128 130 143 160 176 200 208 220 256 260 275 286 320 325 352 400 416 440 512 520 550 572 601 640 650 704 715 800 832 880 1024 1040 1100 1144 1202 1280 1300 1408 1430 1600 1664 1760 2048 2080 2200 2288 2404 2560 2600 2816 2860 3005 3200 3328 3520 3575 4160 4400 4576 4729 4808 5120 5200 5632 5720 6010 6400 6611 6656 7040 7150 7813 8320 8800 9152 9458 9616 10240 10400 11264 11440 12020 12800 13222 13312 14080 14300 15025 15626 16640 17600 18304 18916 19232 20800 22528 22880 23645 24040 25600 26444 26624 28160 28600 30050 31252 33055 33280 35200 36608 37832 38464 39065 41600 45760 47290 48080 51200 52019 52888 56320 57200 60100 61477 62504 66110 66560 70400 73216 75664 76928 78130 83200 85943 91520 94580 96160 104038 105776 112640 114400 118225 120200 122954 125008 132220 133120 140800 146432 151328 153856 156260 165275 166400 171886 183040 189160 192320 195325 208076 211552 228800 236450 240400 245908 250016 260095 264440 281600 292864 302656 307385 307712 312520 330550 332800 343772 366080 378320 384640 390650 416152 423104 429715 457600 472900 480800 491816 500032 520190 528880 563200 605312 614770 615424 625040 661100 665600 676247 687544 732160 756640 769280 781300 832304 846208 859430 915200 945800 961600 983632 1000064 1040380 1057760 1210624 1229540 1230848 1250080 1300475 1322200 1352494 1375088 1464320 1513280 1536925 1538560 1562600 1664608 1692416 1718860 1830400 1891600 1923200 1967264 2000128 2080760 2115520 2148575 2421248 2459080 2500160 2600950 2644400 2704988 2750176 2842129 3026560 3073850 3077120 3125200 3329216 3381235 3384832 3437720 3660800 3783200 3846400 3934528 4000256 4161520 4231040 4297150 4842496 4918160 5000320 5201900 5288800 5409976 5500352 5684258 6053120 6147700 6154240 6250400 6658432 6762470 6769664 6875440 7321600 7566400 7692800 7869056 8000512 8323040 8462080 8594300 9684992 9836320 10000640 10403800 10577600 10819952 11000704 11368516 12106240 12295400 12500800 13316864 13524940 13539328 13750880 14210645 15132800 15385600 15738112 16001024 16646080 16906175 16924160 17188600 19672640 20001280 20807600 21155200 21639904 22001408 22737032 24212480 24590800 25001600 26633728 27049880 27501760 28421290 30265600 30771200 31263419 31476224 33292160 33812350 33848320 34377200 36947677 39345280 40002560 41615200 42310400 43279808 44002816 45474064 48424960 49181600 50003200 53267456 54099760 55003520 56842580 60531200 62526838 62952448 66584320 67624700 67696640 68754400 71053225 73895354 78690560 80005120 83230400 84620800 86559616 88005632 90948128 98363200 100006400 106534912 108199520 110007040 113685160 121062400 125053676 125904896 133168640 135249400 137508800 142106450 147790708 156317095 157381120 166460800 169241600 173119232 176011264 181896256 184738385 196726400 200012800 216399040 220014080 227370320 242124800 250107352 266337280 270498800 275017600 284212900 295581416 312634190 314762240 332921600 338483200 346238464 363792512 369476770 393452800 400025600 406424447 432798080 440028160 454740640 500214704 532674560 540997600 550035200 568425800 591162832 625268380 629524480 665843200 692476928 727585024 738953540 781585475 786905600 812848894 865596160 880056320 909481280 923691925 1000429408 1081995200 1100070400 1136851600 1182325664 1250536760 1331686400 1384953856 1455170048 1477907080 1563170950 1573811200 1625697788 1731192320 1818962560 1847383850 2000858816 2032122235 2163990400 2200140800 2273703200 2364651328 2501073520 2663372800 2910340096 2955814160 3126341900 3147622400 3251395576 3462384640 3637925120 3694767700 4001717632 4064244470 4327980800 4400281600 4547406400 4729302656 5002147040 5820680192 5911628320 6252683800 6502791152 6924769280 7275850240 7389535400 8003435264 8128488940 8655961600 9094812800 9458605312 10004294080 10160611175 11823256640 12505367600 13005582304 14551700480 14779070800 16006870528 16256977880 17311923200 18189625600 18917210624 20008588160 20321222350 23646513280 25010735200 26011164608 29103400960 29558141600 32013741056 32513955760 34623846400 36379251200 37834421248 40017176320 40642444700 47293026560 50021470400 52022329216 59116283200 64027482112 65027911520 72758502400 75668842496 80034352640 81284889400 94586053120 100042940800 104044658432 118232566400 130055823040 145517004800 160068705280 162569778800 189172106240 200085881600 208089316864 236465132800 260111646080 320137410560 325139557600 378344212480 400171763200 416178633728 472930265600 520223292160 650279115200 800343526400 832357267456 945860531200 1040446584320 1300558230400 1600687052800 1891721062400 2080893168640 2601116460800 4161786337280 5202232921600 10404465843200 20808931686400
• Sum of all divisors σ(n): 60727096029600
• Sum of proper divisors (its aliquot sum) s(n): 39918164343200
• 20808931686400 is an abundant number, because the sum of its proper divisors (39918164343200) is greater than itself. Its abundance is 19109232656800

Bases of 20808931686400

• Binary: 100101110110011110100111110110011100000000000₂
• Hexadecimal: 0x12ECF4FB3800
• Base-36: 7DJHONLDS

Squares and roots of 20808931686400

• 20808931686400 squared (20808931686400²) is 433011637929261947944960000
• 20808931686400 cubed (20808931686400³) is 9010509593086183030357665507180544000000
• The square root of 20808931686400 is 4561680.7961978225
• The cube root of 20808931686400 is 27505.3132153185

Scales and comparisons

• 20,808,931,686,400 seconds is equal to 661,659 years, 34 weeks, 2 days, 17 hours, 46 minutes, 40 seconds.
• To count from 1 to 20,808,931,686,400 would take you about one million, six hundred fifty-four thousand, one hundred forty-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 20808931686400 cubic inches would be around 2292.1 feet tall.

Recreational maths with 20808931686400

• 20808931686400 backwards is 00468613980802
• 20808931686400 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20808931686400's digits is 55
• More coming soon!