81315807822720
81,315,807,822,720 is an even composite number composed of seven prime numbers multiplied together.
What does the number 81315807822720 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 768 divisors.
81315807822720 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of seven hundred sixty-eight divisors.
Prime factorization of 81315807822720:
27 × 32 × 5 × 41 × 127 × 331 × 8191
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 41 × 127 × 331 × 8191)See below for interesting mathematical facts about the number 81315807822720 from the Numbermatics database.
Names of 81315807822720
- Cardinal: 81315807822720 can be written as Eighty-one trillion, three hundred fifteen billion, eight hundred seven million, eight hundred twenty-two thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 8.131580782272 × 1013
Factors of 81315807822720
Divisors of 81315807822720
- Number of divisors d(n): 768
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 41 45 48 60 64 72 80 82 90 96 120 123 127 128 144 160 164 180 192 205 240 246 254 288 320 328 331 360 369 381 384 410 480 492 508 576 615 635 640 656 662 720 738 762 820 960 984 993 1016 1143 1152 1230 1270 1312 1324 1440 1476 1524 1640 1655 1845 1905 1920 1968 1986 2032 2286 2460 2540 2624 2648 2880 2952 2979 3048 3280 3310 3690 3810 3936 3972 4064 4572 4920 4965 5080 5207 5248 5296 5715 5760 5904 5958 6096 6560 6620 7380 7620 7872 7944 8128 8191 9144 9840 9930 10160 10414 10592 11430 11808 11916 12192 13120 13240 13571 14760 14895 15240 15621 15744 15888 16256 16382 18288 19680 19860 20320 20828 21184 22860 23616 23832 24384 24573 26035 26240 26480 27142 29520 29790 30480 31242 31776 32764 36576 39360 39720 40640 40713 40955 41656 42037 42368 45720 46863 47232 47664 48768 49146 52070 52960 54284 59040 59580 60960 62484 63552 65528 67855 73152 73719 78105 78720 79440 81280 81426 81910 83312 84074 91440 93726 95328 98292 104140 105920 108568 118080 119160 121920 122139 122865 124968 126111 127104 131056 135710 146304 147438 156210 158880 162852 163820 166624 168148 182880 187452 190656 196584 203565 208280 210185 211840 217136 234315 236160 238320 243840 244278 245730 249936 252222 262112 271420 294876 312420 317760 325704 327640 333248 335831 336296 365760 368595 374904 378333 381312 393168 407130 416560 420370 434272 468630 476640 488556 491460 499872 504444 524224 542840 589752 610695 624840 630555 635520 651408 655280 666496 671662 672592 731520 737190 749808 756666 786336 814260 833120 840740 868544 937260 953280 977112 982920 999744 1007493 1008888 1040257 1048448 1085680 1179504 1221390 1249680 1261110 1302816 1310560 1343324 1345184 1474380 1499616 1513332 1572672 1628520 1666240 1679155 1681480 1723517 1737088 1874520 1891665 1906560 1954224 1965840 1999488 2014986 2017776 2080514 2171360 2359008 2442780 2499360 2522220 2605632 2621120 2686648 2690368 2711221 2948760 2999232 3022479 3026664 3120771 3145344 3257040 3332480 3358310 3362960 3447034 3749040 3783330 3908448 3931680 4029972 4035552 4161028 4342720 4718016 4885560 4998720 5037465 5044440 5170551 5201285 5211264 5242240 5373296 5380736 5422442 5897520 5998464 6044958 6053328 6241542 6514080 6716620 6725920 6894068 7498080 7566660 7816896 7863360 8059944 8071104 8133663 8322056 8617585 8685440 9362313 9436032 9771120 9997440 10074930 10088880 10341102 10402570 10746592 10844884 11795040 12089916 12106656 12483084 13028160 13433240 13451840 13556105 13788136 14996160 15112395 15133320 15511653 15603855 15633792 15726720 16119888 16142208 16267326 16644112 17235170 18724626 19542240 20149860 20177760 20682204 20805140 21493184 21689768 23590080 24179832 24213312 24400989 24966168 25852755 26056320 26866480 26903680 27112210 27576272 29992320 30224790 30266640 31023306 31207710 32239776 32534652 33288224 34470340 37449252 39084480 40299720 40355520 40668315 41364408 41610280 42650537 42986368 43379536 46811565 47180160 48359664 48426624 48801978 49932336 51705510 53732960 54224420 55152544 60449580 60533280 62046612 62415420 64479552 65069304 66576448 68940680 74898504 77558265 78168960 80599440 80711040 81336630 82728816 83220560 85301074 86759072 93623130 96719328 97603956 99864672 103411020 107465920 108448840 110305088 111160061 120899160 121066560 122004945 124093224 124830840 127951611 128959104 130138608 133152896 137881360 149797008 155116530 161198880 162673260 165457632 166441120 170602148 173518144 187246260 193438656 195207912 199729344 206822040 213252685 214931840 216897680 220610176 222320122 241798320 242133120 244009890 248186448 249661680 255903222 260277216 275762720 299594016 310233060 322397760 325346520 330915264 332882240 333480183 341204296 344325067 347036288 374492520 383854833 386877312 390415824 399458688 413644080 426505370 433795360 444640244 483596640 488019780 496372896 499323360 511806444 520554432 551525440 555800305 599188032 620466120 639758055 644795520 650693040 661830528 665764480 666960366 682408592 688650134 748985040 767709666 780831648 827288160 853010740 867590720 889280488 967193280 976039560 992745792 998646720 1000440549 1023612888 1032975201 1041108864 1103050880 1111600610 1198376064 1240932240 1279516110 1301386080 1333920732 1364817184 1377300268 1497970080 1535419332 1561663296 1654576320 1667400915 1706021480 1721625335 1735181440 1778560976 1919274165 1934386560 1952079120 1985491584 1997293440 2000881098 2047225776 2065950402 2223201220 2481864480 2559032220 2602772160 2667841464 2729634368 2754600536 2995940160 3070838664 3098925603 3123326592 3309152640 3334801830 3412042960 3443250670 3557121952 3838548330 3904158240 4001762196 4094451552 4131900804 4446402440 4963728960 5002202745 5118064440 5164876005 5205544320 5335682928 5459268736 5509201072 5991880320 6141677328 6197851206 6669603660 6824085920 6886501340 7114243904 7677096660 7808316480 8003524392 8188903104 8263801608 8892804880 9927457920 10004405490 10236128880 10329752010 10671365856 11018402144 12283354656 12395702412 13339207320 13648171840 13773002680 14117327747 14228487808 15354193320 15494628015 15616632960 16007048784 16377806208 16527603216 17785609760 20008810980 20472257760 20659504020 21342731712 22036804288 24566709312 24791404824 26678414640 27296343680 27546005360 28234655494 30708386640 30989256030 32014097568 33055206432 35571219520 40017621960 40944515520 41319008040 42351983241 42685463424 44073608576 49133418624 49582809648 53356829280 55092010720 56469310988 61416773280 61978512060 64028195136 66110412864 70586638735 71142439040 80035243920 81889031040 82638016080 84703966482 99165619296 106713658560 110184021440 112938621976 122833546560 123957024120 127055949723 128056390272 132220825728 141173277470 160070487840 165276032160 169407932964 198331238592 211759916205 213427317120 220368042880 225877243952 245667093120 247914048240 254111899446 282346554940 320140975680 330552064320 338815865928 396662477184 423519832410 451754487904 495828096480 508223798892 564693109880 635279748615 640281951360 661104128640 677631731856 847039664820 903508975808 991656192960 1016447597784 1129386219760 1270559497230 1355263463712 1694079329640 1807017951616 1983312385920 2032895195568 2258772439520 2541118994460 2710526927424 3388158659280 4065790391136 4517544879040 5082237988920 5421053854848 6776317318560 8131580782272 9035089758080 10164475977840 13552634637120 16263161564544 20328951955680 27105269274240 40657903911360 81315807822720
- Sum of all divisors σ(n): 290818527068160
- Sum of proper divisors (its aliquot sum) s(n): 209502719245440
- 81315807822720 is an abundant number, because the sum of its proper divisors (209502719245440) is greater than itself. Its abundance is 128186911422720
Bases of 81315807822720
- Binary: 100100111110100110011111101011100000011100000002
- Hexadecimal: 0x49F4CFD70380
- Base-36: STNYSGRK0
Squares and roots of 81315807822720
- 81315807822720 squared (813158078227202) is 6612260601861531146948198400
- 81315807822720 cubed (813158078227203) is 537681312374715149833247245309330587648000
-
The
square root of 81315807822720 is 9017527.8110311365 -
The
cube root of 81315807822720 is 43323.6455082881
Scales and comparisons
How big is 81315807822720?- 81,315,807,822,720 seconds is equal to 2,585,591 years, 8 weeks, 3 days, 3 hours, 12 minutes.
-
To count from 1 to 81,315,807,822,720 would take you about six million, four hundred sixty-three thousand, nine hundred seventy-seven 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 81315807822720 cubic inches would be around 3610.3 feet tall.
Recreational maths with 81315807822720
- 81315807822720 backwards is 02722870851318
- The number of decimal digits it has is: 14
- The sum of 81315807822720's digits is 54
- More coming soon!
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The information we have on file for 81315807822720 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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