21388878033120

Names of 21388878033120

• Cardinal: 21388878033120 can be written as Twenty-one trillion, three hundred eighty-eight billion, eight hundred seventy-eight million, thirty-three thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.138887803312 × 10¹³

Factors of 21388878033120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 521

Divisors of 21388878033120

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 31 32 36 39 40 45 48 52 60 62 65 72 78 80 90 93 96 104 117 120 124 130 144 155 156 160 169 180 186 195 208 234 240 248 260 279 288 310 312 338 360 372 390 403 416 465 467 468 480 496 507 520 558 585 620 624 676 720 744 780 806 845 930 934 936 992 1014 1040 1116 1170 1209 1240 1248 1352 1395 1401 1440 1488 1521 1560 1612 1690 1860 1868 1872 2015 2028 2080 2197 2232 2335 2340 2418 2480 2535 2704 2790 2802 2976 3042 3120 3224 3380 3627 3720 3736 3744 4030 4056 4203 4394 4464 4670 4680 4836 4960 5070 5239 5408 5580 5604 6045 6071 6084 6240 6448 6591 6760 7005 7254 7440 7472 7605 8060 8112 8406 8788 8928 9340 9360 9672 10140 10478 10985 11160 11208 12090 12142 12168 12896 13182 13520 14010 14477 14508 14880 14944 15210 15717 16120 16224 16812 17576 18135 18213 18680 18720 19344 19773 20280 20956 21015 21970 22320 22416 24180 24284 24336 26195 26364 27040 28020 28954 29016 30355 30420 31434 32240 32955 33624 35152 36270 36426 37360 38688 39546 40560 41912 42030 43431 43940 44640 44832 47151 48360 48568 48672 52390 52728 54639 56040 57908 58032 60710 60840 62868 64480 65910 67248 68107 70304 72385 72540 72852 74720 78585 78923 79092 81120 83824 84060 86862 87880 91065 94302 96720 97136 98865 104780 105456 109278 112080 115816 116064 121420 121680 125736 130293 131820 134496 136214 144770 145080 145704 157170 157846 158184 167648 168120 173724 175760 182130 188201 188604 193440 194272 197730 204321 209560 210912 217155 218089 218556 224160 231632 235755 236769 242840 243360 251472 260586 263640 272428 273195 289540 290160 291408 314340 315692 316368 336240 340535 347448 351520 364260 376402 377208 394615 395460 408642 419120 434310 436178 437112 463264 471510 473538 485680 502944 521172 527280 544856 546390 564603 579080 580320 582816 612963 628680 631384 632736 651465 654267 672480 681070 694896 710307 728520 752804 754416 789230 790920 817284 838240 868620 872356 874224 941005 943020 947076 971360 1021605 1025999 1042344 1054560 1089712 1090445 1092780 1129206 1158160 1183845 1225926 1257360 1262768 1302930 1308534 1362140 1389792 1420614 1457040 1505608 1508832 1578460 1581840 1634568 1693809 1737240 1744712 1748448 1882010 1886040 1894152 1962801 2043210 2051998 2084688 2179424 2180890 2185560 2258412 2316320 2367690 2446613 2451852 2514720 2525536 2605860 2617068 2724280 2823015 2835157 2841228 2914080 3011216 3064815 3077997 3156920 3163680 3269136 3271335 3387618 3474480 3489424 3551535 3764020 3772080 3788304 3925602 4086420 4103996 4169376 4361780 4371120 4516824 4735380 4893226 4903704 5129995 5211720 5234136 5448560 5646030 5670314 5682456 6022432 6129630 6155994 6313840 6538272 6542670 6760759 6775236 6948960 6978848 7103070 7339839 7528040 7544160 7576608 7851204 8172840 8207992 8469045 8505471 8723560 8742240 9033648 9233991 9470760 9786452 9807408 9814005 10259990 10423440 10468272 10897120 11292060 11340628 11364912 12233065 12259260 12311988 12627680 13085340 13521518 13550472 14175785 14206140 14679678 15056080 15389985 15702408 16345680 16415984 16938090 17010942 17447120 18067296 18467982 18941520 19572904 19614816 19628010 20282277 20519980 20846880 20936544 22019517 22584120 22681256 22729824 24466130 24518520 24623976 25516413 26170680 27043036 27100944 28351570 28412280 29359356 30112160 30779970 31404816 31805969 32691360 32831968 33803795 33876180 34021884 34894240 36699195 36857041 36935964 37883040 39145808 39256020 40564554 41039960 42527355 44039034 45168240 45362512 46169955 48932260 49037040 49247952 51032826 52341360 54086072 54201888 56703140 56824560 58718712 60846831 61559940 62809632 63611938 67607590 67752360 68043768 73398390 73714082 73871928 78291616 78512040 81129108 82079920 85054710 87889867 88078068 90336480 90725024 92339910 95417907 97864520 98074080 98495904 101411385 102065652 104682720 108172144 110097585 110571123 113406280 113649120 117437424 121693662 123119880 127223876 127582065 135215180 135504720 136087536 146796780 147428164 147743856 157024080 159029845 162258216 164159840 170109420 175779734 176156136 184285205 184679820 190835814 195729040 202822770 204131304 216344288 220195170 221142246 226812560 234874848 243387324 246239760 254447752 255164130 263669601 270430360 271009440 272175072 286253721 293593560 294856328 295487712 304234155 314048160 318059690 324516432 331713369 340218840 351559468 352312272 368570410 369359640 381671628 391458080 405645540 408262608 439449335 440390340 442284492 453625120 477089535 479141533 486774648 492479520 508895504 510328260 527339202 540860720 552855615 572507442 587187120 589712656 608468310 636119380 649032864 663426738 680437680 703118936 704624544 737140820 738719280 763343256 791008803 811291080 816525216 878898670 880780680 884568984 954179070 958283066 973549296 1017791008 1020656520 1054678404 1081721440 1105711230 1142568271 1145014884 1174374240 1179425312 1216936620 1272238760 1318348005 1326853476 1360875360 1406237872 1431268605 1437424599 1474281640 1477438560 1526686512 1582017606 1622582160 1658566845 1757797340 1761561360 1769137968 1908358140 1916566132 1947098592 2041313040 2109356808 2211422460 2285136542 2290029768 2395707665 2433873240 2544477520 2636696010 2653706952 2812475744 2862537210 2874849198 2948563280 3053373024 3164035212 3245164320 3317133690 3427704813 3515594680 3523122720 3538275936 3816716280 3833132264 3955044015 4082626080 4218713616 4312273797 4422844920 4570273084 4580059536 4791415330 4867746480 5088955040 5273392020 5307413904 5712841355 5725074420 5749698396 5897126560 6328070424 6634267380 6855409626 7031189360 7187122995 7633432560 7666264528 7910088030 8437427232 8624547594 8845689840 9140546168 9160119072 9582830660 9735492960 10283114439 10546784040 10614827808 11425682710 11450148840 11499396792 12656140848 13268534760 13710819252 14062378720 14374245990 14853387523 15266865120 15332529056 15820176060 17138524065 17249095188 17691379680 18281092336 19165661320 20566228878 21093568080 21561368985 22851365420 22900297680 22998793584 25312281696 26537069520 27421638504 28748491980 29706775046 31640352120 34277048130 34498190376 36562184672 38331322640 41132457756 42187136160 43122737970 44560162569 45702730840 45800595360 45997587168 51415572195 53074139040 54843277008 57496983960 59413550092 63280704240 68554096260 68996380752 74266937615 76662645280 82264915512 86245475940 89120325138 91405461680 102831144390 109686554016 114993967920 118827100184 126561408480 133680487707 137108192520 137992761504 148533875230 164529831024 172490951880 178240650276 182810923360 205662288780 222800812845 229987935840 237654200368 267360975414 274216385040 297067750460 329059662048 344981903760 356481300552 411324577560 445601625690 475308400736 534721950828 548432770080 594135500920 668402438535 689963807520 712962601104 822649155120 891203251380 1069443901656 1188271001840 1336804877070 1425925202208 1645298310240 1782406502760 2138887803312 2376542003680 2673609754140 3564813005520 4277775606624 5347219508280 7129626011040 10694439016560 21388878033120
• Sum of all divisors σ(n): 81795009703680
• Sum of proper divisors (its aliquot sum) s(n): 60406131670560
• 21388878033120 is an abundant number, because the sum of its proper divisors (60406131670560) is greater than itself. Its abundance is 39017253637440

Bases of 21388878033120

• Binary: 100110111001111111100011110100011000011100000₂
• Hexadecimal: 0x1373FC7A30E0
• Base-36: 7KXWXQIG0

Squares and roots of 21388878033120

• 21388878033120 squared (21388878033120²) is 457484103515683279816934400
• 21388878033120 cubed (21388878033120³) is 9785071692188194267083702443140067328000
• The square root of 21388878033120 is 4624811.1348594549
• The cube root of 21388878033120 is 27758.5004537731

Scales and comparisons

• 21,388,878,033,120 seconds is equal to 680,100 years, 8 weeks, 2 days, 17 hours, 12 minutes.
• To count from 1 to 21,388,878,033,120 would take you about one million, seven hundred thousand, two hundred fifty 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 21388878033120 cubic inches would be around 2313.2 feet tall.

Recreational maths with 21388878033120

• 21388878033120 backwards is 02133087888312
• The number of decimal digits it has is: 14
• The sum of 21388878033120's digits is 54
• More coming soon!