21209970766920

Names of 21209970766920

• Cardinal: 21209970766920 can be written as Twenty-one trillion, two hundred nine billion, nine hundred seventy million, seven hundred sixty-six thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.120997076692 × 10¹³

Factors of 21209970766920

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2189

Divisors of 21209970766920

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 23 24 26 30 37 39 40 46 52 60 65 69 74 78 89 92 104 111 115 120 130 138 148 156 178 184 185 195 222 230 260 267 276 296 299 312 345 356 370 390 444 445 460 481 520 534 552 555 598 690 712 740 780 851 888 890 897 920 962 1068 1110 1157 1196 1335 1380 1443 1480 1495 1560 1702 1780 1794 1924 2017 2047 2136 2220 2314 2392 2405 2553 2670 2760 2886 2990 3293 3404 3471 3560 3588 3848 4034 4094 4255 4440 4485 4628 4810 5106 5340 5772 5785 5980 6051 6141 6586 6808 6942 7176 7215 7921 8068 8188 8510 8970 9256 9620 9879 10085 10212 10235 10680 11063 11544 11570 11960 12102 12282 12765 13172 13884 14430 15842 16136 16376 16465 17020 17355 17940 19240 19758 20170 20424 20470 22126 23140 23763 24204 24564 25530 26221 26344 26611 27768 28860 30255 30705 31684 32930 33189 34040 34710 35880 39516 39605 40340 40940 42809 44252 46280 46391 47526 48408 49128 49395 51060 52442 53222 55315 57720 60510 61410 63368 65860 66378 69420 74629 75739 78663 79032 79210 79833 80680 81880 85618 88504 92782 95052 98790 102120 102973 104884 106444 110630 118815 121020 122820 128427 131105 131720 132756 133055 138840 139173 149258 151478 157326 158420 159666 165945 171236 179513 182183 185564 190104 197580 205946 209768 212888 214045 221260 223887 227217 231955 237630 242040 245640 256854 262210 265512 266110 278346 293077 298516 302956 308919 314652 316840 319332 331890 342472 359026 364366 371128 373145 378695 393315 395160 399165 411892 428090 442520 447774 454434 463910 475260 513708 514865 524420 532220 538539 546549 556692 586154 597032 603083 605912 617838 629304 638664 642135 663780 695865 718052 728732 746290 757390 786630 798330 823784 856180 879231 895548 897565 908868 910915 927820 950520 970177 984607 1027416 1029730 1048840 1064440 1077078 1093098 1113384 1119435 1136085 1172308 1206166 1235676 1284270 1327560 1391730 1436104 1457464 1465385 1492580 1514780 1544595 1573260 1596660 1712360 1716467 1758462 1791096 1795130 1809249 1817736 1821830 1855640 1940354 1969214 2059460 2154156 2186196 2238870 2272170 2333669 2344616 2368379 2412332 2471352 2568540 2692695 2732745 2783460 2910531 2930770 2953821 2985160 3015415 3029560 3089190 3146520 3193320 3432934 3516924 3590260 3618498 3643660 3810001 3880708 3938428 4118920 4128799 4308312 4372392 4396155 4477740 4544340 4667338 4736758 4824664 4850885 4923035 5137080 5149401 5385390 5465490 5566920 5821062 5861540 5907642 6030830 6178380 6641981 6740771 6865868 7001007 7033848 7105137 7180520 7236996 7287320 7620002 7761416 7876856 8257598 8582335 8792310 8955480 9046245 9088680 9334676 9473516 9701770 9846070 10298802 10770780 10930980 11430003 11642124 11668345 11723080 11815284 11841895 12061660 12356760 12386397 13283962 13481542 13731736 14002014 14210274 14473992 14552655 14769105 15240004 15976657 16515196 17164670 17584620 18092490 18669352 18947032 19050005 19403540 19692140 19925943 20222313 20597604 20643995 21541560 21861960 22314071 22860006 23284248 23336690 23630568 23683790 24123320 24772794 25747005 26567924 26963084 28004028 28420548 29105310 29538210 30480008 31953314 33030392 33209905 33703855 34329340 35005035 35169240 35525685 36184980 38100010 38807080 39384280 39851886 40444626 41195208 41287990 44628142 45720012 46673380 47367580 47929971 49545588 51494010 53135848 53674387 53926168 56008056 56841096 57150015 58210620 59076420 61931985 63906628 66419810 66942213 67407710 68658680 70010070 71051370 72369960 76200020 79703772 79883285 80889252 82575980 86345753 87630023 89256284 91440024 93346760 94735160 95859942 99091176 99629715 101111565 102988020 107348774 111570355 114300030 116421240 118152840 123863970 127813256 132839620 133884426 134815420 140020140 142102740 152400040 152765563 159407544 159766570 161023161 161778504 165151960 172691506 175260046 178512568 191719884 199259430 202223130 205976040 207696541 214697548 223140710 228600060 239649855 247727940 259037259 262890069 265679240 267768852 268371935 269630840 280040280 284205480 305531126 319533140 322046322 334711065 345383012 350520092 367463111 383439768 398518860 404446260 415393082 429395096 431728765 438150115 446281420 457200120 458296689 479299710 495455880 518074518 525780138 535537704 536743870 591136309 611062252 623089623 639066280 644092644 669422130 690766024 701040184 734926222 763827815 797037720 805115805 808892520 830786164 863457530 876300230 892562840 916593378 958599420 1036149036 1038482705 1051560276 1073487740 1102389333 1182272618 1222124504 1246179246 1288185288 1295186295 1314450345 1338844260 1469852444 1527655630 1610231610 1661572328 1726915060 1752600460 1773408927 1833186756 1837315555 1917198840 1985952319 2072298072 2076965410 2103120552 2146975480 2204778666 2291483445 2364545236 2492358492 2590372590 2628900690 2677688520 2939704888 2955681545 3055311260 3115448115 3220463220 3453830120 3505200920 3546817854 3666373512 3674631110 3971904638 4153930820 4409557332 4582966890 4729090472 4777020443 4984716984 5180745180 5257801380 5511946665 5911363090 5957856957 6110622520 6230896230 6440926440 7093635708 7349262220 7684772017 7943809276 8307861640 8819114664 8867044635 9165933780 9554040886 9929761595 10361490360 10515602760 11023893330 11822726180 11915713914 12461792460 13596135107 14187271416 14331061329 14698524440 15369544034 15887618552 17734089270 18331867560 19108081772 19859523190 22047786660 23054316051 23645452360 23831427828 23885102215 24923584920 27192270214 28662122658 29789284785 30739088068 35468178540 38216163544 38423860085 39719046380 40788405321 44095573320 46108632102 47662855656 47770204430 54384540428 57324245316 59578569570 61478176136 67980675535 70936357080 71655306645 76847720170 79438092760 81576810642 92217264204 95540408860 108769080856 114648490632 115271580255 119157139140 135961351070 143310613290 153695440340 163153621284 176749756391 184434528408 191080817720 203942026605 230543160510 238314278280 271922702140 286621226580 307390880680 326307242568 353499512782 407884053210 461086321020 530249269173 543845404280 573242453160 706999025564 815768106420 883748781955 922172642040 1060498538346 1413998051128 1631536212840 1767497563910 2120997076692 2651246345865 3534995127820 4241994153384 5302492691730 7069990255640 10604985383460 21209970766920
• Sum of all divisors σ(n): 74307605783040
• Sum of proper divisors (its aliquot sum) s(n): 53097635016120
• 21209970766920 is an abundant number, because the sum of its proper divisors (53097635016120) is greater than itself. Its abundance is 31887664249200

Bases of 21209970766920

• Binary: 100110100101001010100110001011111010001001000₂
• Hexadecimal: 0x134A54C5F448
• Base-36: 7INQ4YWCO

Squares and roots of 21209970766920

• 21209970766920 squared (21209970766920²) is 449862859933600972966286400
• 21209970766920 cubed (21209970766920³) is 9541578108314703168863003742712365888000
• The square root of 21209970766920 is 4605428.4021054979
• The cube root of 21209970766920 is 27680.8883304157

Scales and comparisons

• 21,209,970,766,920 seconds is equal to 674,411 years, 24 weeks, 18 hours, 22 minutes.
• To count from 1 to 21,209,970,766,920 would take you about one million, six hundred eighty-six thousand and twenty-eight 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 21209970766920 cubic inches would be around 2306.7 feet tall.

Recreational maths with 21209970766920

• 21209970766920 backwards is 02966707990212
• 21209970766920 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21209970766920's digits is 60
• More coming soon!