21129495805440

Names of 21129495805440

• Cardinal: 21129495805440 can be written as Twenty-one trillion, one hundred twenty-nine billion, four hundred ninety-five million, eight hundred five thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.112949580544 × 10¹³

Factors of 21129495805440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 1871

Divisors of 21129495805440

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 72 80 88 90 96 99 108 110 120 127 128 132 135 144 160 165 176 180 192 198 216 220 240 254 256 264 270 288 297 320 330 352 360 381 384 396 432 440 480 495 508 512 528 540 576 594 635 640 660 704 720 762 768 792 864 880 960 990 1016 1056 1080 1143 1152 1188 1270 1280 1320 1397 1408 1440 1485 1524 1536 1584 1723 1728 1760 1905 1920 1980 2032 2112 2160 2286 2304 2376 2540 2560 2640 2794 2816 2880 2970 3048 3168 3429 3446 3456 3520 3810 3840 3960 4064 4191 4224 4320 4572 4608 4752 5080 5169 5280 5588 5632 5715 5760 5940 6096 6336 6858 6892 6912 6985 7040 7620 7680 7920 8128 8382 8448 8615 8640 9144 9504 10160 10338 10560 11176 11430 11520 11880 12192 12573 12672 13716 13784 13824 13970 14080 15240 15507 15840 16129 16256 16764 16896 17145 17230 17280 18288 18953 19008 20320 20676 20955 21120 22352 22860 23040 23760 24384 25146 25344 25845 27432 27568 27940 28160 30480 31014 31680 32258 32512 33528 34290 34460 34560 36576 37719 37906 38016 40640 41352 41910 42240 44704 45720 46521 47520 48387 48768 50292 50688 51690 54864 55136 55880 56859 60960 62028 62865 63360 64516 65024 67056 68580 68920 69120 73152 75438 75812 76032 77535 80645 81280 82704 83820 84480 89408 91440 93042 94765 95040 96774 97536 100584 103380 109728 110272 111760 113718 121920 124056 125730 126720 129032 134112 137160 137840 145161 146304 150876 151624 152064 155070 161290 162560 165408 167640 170577 177419 178816 182880 186084 188595 189530 190080 193548 195072 201168 206760 218821 219456 220544 223520 227436 232605 241935 243840 248112 251460 253440 258064 268224 274320 275680 284295 290322 292608 301752 303248 310140 322580 325120 330816 335280 341154 354838 357632 365760 372168 377190 379060 380160 387096 402336 413520 435483 437642 438912 441088 447040 454872 465210 483870 487680 496224 502920 511731 516128 532257 536448 548640 551360 568590 580644 585216 603504 606496 620280 645160 656463 661632 670560 682308 709676 715264 725805 731520 744336 754380 758120 760320 774192 804672 827040 852885 870966 875284 877824 882176 887095 894080 909744 930420 967740 975360 992448 1005840 1023462 1032256 1064514 1072896 1094105 1097280 1102720 1137180 1161288 1207008 1212992 1240560 1290320 1312926 1323264 1341120 1364616 1419352 1451610 1463040 1488672 1508760 1516240 1548384 1596771 1609344 1654080 1705770 1741932 1750568 1755648 1774190 1788160 1819488 1860840 1935480 1969389 1984896 2011680 2046924 2064512 2129028 2145792 2177415 2188210 2194560 2205440 2274360 2322576 2407031 2414016 2425984 2481120 2558655 2580640 2625852 2646528 2661285 2682240 2729232 2838704 2903220 2926080 2977344 3017520 3032480 3096768 3193542 3218688 3282315 3308160 3411540 3483864 3501136 3548380 3576320 3638976 3721680 3870960 3938778 3969792 4023360 4093848 4129024 4258056 4354830 4376420 4389120 4410880 4548720 4645152 4790313 4814062 4828032 4851968 4962240 5117310 5161280 5251704 5322570 5364480 5458464 5677408 5806440 5908167 5954688 6035040 6064960 6193536 6387084 6437376 6564630 6616320 6823080 6967728 7002272 7096760 7221093 7277952 7443360 7741920 7877556 7939584 7983855 8046720 8187696 8258048 8516112 8709660 8752840 8778240 9097440 9290304 9580626 9628124 9656064 9703936 9846945 9924480 10234620 10322560 10503408 10645140 10728960 10916928 11354816 11612880 11816334 11909376 12035155 12070080 12129920 12387072 12774168 13129260 13232640 13646160 13935456 14004544 14193520 14442186 14555904 14886720 15483840 15755112 15967710 16093440 16375392 17032224 17419320 17505680 18194880 18580608 19161252 19256248 19312128 19693890 19848960 20469240 20645120 21006816 21290280 21663279 21833856 22709632 23225760 23632668 23818752 23951565 24070310 24140160 24259840 24774144 25548336 26258520 27292320 27790267 27870912 28009088 28387040 28884372 29111808 29540835 29773440 30967680 31510224 31935420 32186880 32750784 34064448 34838640 35011360 36105465 36389760 37161216 38322504 38512496 39387780 39697920 40938480 41290240 42013632 42580560 43326558 43667712 45419264 46451520 47265336 47903130 48140620 48280320 48519680 51096672 52517040 54584640 55580534 55741824 56018176 56774080 57768744 59081670 59546880 61935360 63020448 63870840 64989837 65501568 68128896 69677280 70022720 72210930 72779520 74322432 76645008 77024992 78775560 81876960 83370801 84027264 85161120 86653116 87335424 90838528 92903040 94530672 95806260 96281240 96560640 102193344 105034080 108316395 109169280 111161068 111483648 112036352 113548160 115537488 118163340 119093760 123870720 126040896 127741680 129979674 131003136 136257792 138951335 139354560 140045440 144421860 145559040 153290016 154049984 157551120 163753920 166741602 168054528 170322240 173306232 185806080 189061344 191612520 192562480 204386688 210068160 216632790 218338560 222322136 222967296 227096320 231074976 236326680 250112403 252081792 255483360 259959348 262006272 272515584 277902670 278709120 280090880 288843720 305692937 306580032 308099968 315102240 324949185 327507840 333483204 336109056 340644480 346612464 371612160 378122688 383225040 385124960 408773376 416854005 420136320 433265580 436677120 444644272 454192640 462149952 472653360 500224806 504163584 510966720 519918696 555805340 557418240 560181760 577687440 611385874 613160064 616199936 630204480 649898370 655015680 666966408 681288960 693224928 750337209 756245376 766450080 770249920 817546752 833708010 840272640 866531160 889288544 917078811 924299904 945306720 1000449612 1008327168 1021933440 1039837392 1111610680 1114836480 1155374880 1222771748 1226320128 1232399872 1250562015 1260408960 1299796740 1310031360 1333932816 1362577920 1386449856 1500674418 1512490752 1528464685 1532900160 1540499840 1667416020 1680545280 1733062320 1778577088 1834157622 1848599808 1890613440 2000899224 2043866880 2079674784 2223221360 2310749760 2445543496 2452640256 2501124030 2520817920 2599593480 2667865632 2751236433 2772899712 3001348836 3024981504 3056929370 3065800320 3080999680 3334832040 3466124640 3557154176 3668315244 3697199616 3751686045 3781226880 4001798448 4087733760 4159349568 4446442720 4585394055 4621499520 4891086992 5002248060 5041635840 5199186960 5335731264 5502472866 5545799424 6002697672 6113858740 6131600640 6161999360 6669664080 6932249280 7114308352 7336630488 7503372090 7562453760 8003596896 8253709299 8318699136 8892885440 9170788110 9242999040 9782173984 10004496120 10398373920 10671462528 11004945732 11091598848 12005395344 12227717480 12263201280 13339328160 13756182165 13864498560 14228616704 14673260976 15006744180 15124907520 16007193792 16507418598 16637398272 17785770880 18341576220 18485998080 19564347968 20008992240 20796747840 21342925056 22009891464 24010790688 24455434960 26678656320 27512364330 27728997120 29346521952 30013488360 32014387584 33014837196 33274796544 35571541760 36683152440 39128695936 40017984480 41268546495 41593495680 42685850112 44019782928 48021581376 48910869920 53357312640 55024728660 55457994240 58693043904 60026976720 64028775168 66029674392 71143083520 73366304880 78257391872 80035968960 82537092990 83186991360 88039565856 96043162752 97821739840 106714625280 110049457320 117386087808 120053953440 128057550336 132059348784 146732609760 156514783744 160071937920 165074185980 166373982720 176079131712 192086325504 195643479680 213429250560 220098914640 234772175616 240107906880 264118697568 293465219520 320143875840 330148371960 352158263424 384172651008 391286959360 440197829280 469544351232 480215813760 528237395136 586930439040 640287751680 660296743920 704316526848 782573918720 880395658560 960431627520 1056474790272 1173860878080 1320593487840 1408633053696 1760791317120 1920863255040 2112949580544 2347721756160 2641186975680 3521582634240 4225899161088 5282373951360 7043165268480 10564747902720 21129495805440
• Sum of all divisors σ(n): 82574468824320
• Sum of proper divisors (its aliquot sum) s(n): 61444973018880
• 21129495805440 is an abundant number, because the sum of its proper divisors (61444973018880) is greater than itself. Its abundance is 40315477213440

Bases of 21129495805440

• Binary: 100110011011110011000000101110111111000000000₂
• Hexadecimal: 0x133798177E00
• Base-36: 7HMR896O0

Squares and roots of 21129495805440

• 21129495805440 squared (21129495805440²) is 446455592992106554333593600
• 21129495805440 cubed (21129495805440³) is 9433381579441943298821197425681629184000
• The square root of 21129495805440 is 4596683.1308498957
• The cube root of 21129495805440 is 27645.8349782795

Scales and comparisons

• 21,129,495,805,440 seconds is equal to 671,852 years, 31 weeks, 4 days, 14 hours, 24 minutes.
• To count from 1 to 21,129,495,805,440 would take you about one million, six hundred seventy-nine thousand, six hundred thirty-one 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 21129495805440 cubic inches would be around 2303.8 feet tall.

Recreational maths with 21129495805440

• 21129495805440 backwards is 04450859492112
• 21129495805440 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21129495805440's digits is 54
• More coming soon!