21209959680

Names of 21209959680

• Cardinal: 21209959680 can be written as Twenty-one billion, two hundred nine million, nine hundred fifty-nine thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.120995968 × 10¹⁰

Factors of 21209959680

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 82

Divisors of 21209959680

• Number of divisors d(n): 1296
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 23 24 26 28 29 30 32 35 39 40 42 46 48 49 52 56 58 60 64 65 69 70 78 80 84 87 91 92 96 98 104 105 112 115 116 120 128 130 138 140 145 147 156 160 161 168 169 174 182 184 192 195 196 203 208 210 224 230 232 240 245 256 260 273 276 280 290 294 299 312 320 322 336 338 345 348 364 368 377 384 390 392 406 416 420 435 448 455 460 464 480 483 490 507 520 546 552 560 580 588 598 609 624 637 640 644 667 672 676 690 696 728 735 736 754 768 780 784 805 812 832 840 845 870 896 897 910 920 928 960 966 980 1014 1015 1040 1092 1104 1120 1127 1131 1160 1176 1183 1196 1218 1248 1274 1280 1288 1334 1344 1352 1365 1380 1392 1421 1456 1470 1472 1495 1508 1560 1568 1610 1624 1664 1680 1690 1740 1792 1794 1820 1840 1856 1885 1911 1920 1932 1960 2001 2028 2030 2080 2093 2184 2208 2240 2254 2262 2320 2352 2366 2392 2415 2436 2496 2535 2548 2576 2639 2668 2688 2704 2730 2760 2784 2842 2912 2940 2944 2990 3016 3045 3120 3136 3185 3220 3248 3328 3335 3360 3380 3381 3480 3549 3588 3640 3680 3712 3770 3822 3840 3864 3887 3920 4002 4056 4060 4160 4186 4263 4368 4416 4480 4485 4508 4524 4640 4669 4704 4732 4784 4830 4872 4901 4992 5070 5096 5152 5278 5336 5376 5408 5460 5520 5568 5635 5655 5684 5824 5880 5888 5915 5980 6032 6090 6240 6272 6279 6370 6440 6496 6670 6720 6760 6762 6960 7098 7105 7176 7280 7360 7424 7540 7644 7728 7774 7840 7917 8004 8112 8120 8281 8320 8372 8526 8671 8736 8832 8960 8970 9016 9048 9280 9338 9408 9464 9555 9568 9660 9744 9802 9984 10005 10140 10192 10304 10465 10556 10672 10816 10920 11040 11136 11270 11310 11368 11648 11661 11760 11830 11960 12064 12180 12480 12544 12558 12740 12880 12992 13195 13340 13440 13520 13524 13920 14007 14196 14210 14352 14560 14651 14703 14720 15080 15288 15456 15548 15680 15834 16008 16224 16240 16562 16640 16744 16905 17052 17342 17472 17664 17745 17940 18032 18096 18473 18560 18676 18816 18928 19110 19136 19320 19435 19488 19604 20010 20280 20384 20608 20930 21112 21315 21344 21632 21840 22080 22272 22540 22620 22736 23296 23322 23345 23520 23660 23920 24128 24360 24505 24843 24960 25116 25480 25760 25984 26013 26390 26680 26880 27040 27048 27209 27840 28014 28392 28420 28704 29120 29302 29406 29440 30160 30576 30912 31096 31360 31395 31668 32016 32448 32480 32683 33124 33488 33810 34104 34307 34684 34944 35490 35880 36064 36192 36946 37120 37352 37632 37856 38220 38272 38640 38870 38976 39208 39585 40020 40560 40768 41216 41405 41860 42224 42630 42688 43264 43355 43680 43953 44160 45080 45240 45472 46644 46690 47040 47320 47840 48256 48720 49010 49686 49920 50232 50960 51520 51968 52026 52780 53360 54080 54096 54418 55419 55680 56028 56784 56840 57408 58240 58305 58604 58812 60320 60697 61152 61824 62192 62720 62790 63336 64032 64896 64960 65366 66248 66976 67620 68208 68614 69368 69888 70035 70980 71760 72128 72384 73255 73515 73892 74704 75712 76440 76544 77280 77740 77952 78416 79170 80040 81120 81536 81627 82810 83720 84448 85260 85376 86710 87360 87906 88320 90160 90480 90944 92365 93288 93380 94080 94640 95680 96512 97440 98020 98049 99372 100464 101920 102921 103040 104052 105560 106720 108160 108192 108836 110838 111360 112056 112723 113568 113680 114816 116480 116610 117208 117624 120640 121394 122304 123648 124215 124384 125580 126672 128064 129792 129920 130065 130732 132496 133952 135240 136045 136416 137228 138736 140070 141960 143520 144256 144768 146510 147030 147784 149408 151424 152880 154560 155480 155904 156832 158340 160080 162240 163072 163254 163415 165620 167440 168896 170520 170752 171535 173420 174720 175812 180320 180960 181888 182091 184730 186576 186760 188160 189280 190463 191360 194880 196040 196098 198744 200928 203840 205842 206080 208104 211120 213440 216320 216384 217672 219765 221676 224112 225446 227136 227360 229632 233220 234416 235248 240149 241280 242788 244608 248430 248768 251160 253344 256128 259840 260130 261464 264992 267904 270480 272090 272832 274456 277095 277472 280140 283920 287040 288512 289536 293020 294060 295568 298816 302848 303485 305760 309120 310960 313664 316680 320160 324480 326508 326830 331240 334880 337792 338169 341040 343070 346840 349440 351624 360640 361920 363776 364182 369460 373152 373520 378560 380926 382720 389760 392080 392196 397488 401856 407680 408135 411684 416208 422240 424879 426880 432768 435344 439530 443352 448224 450892 454272 454720 466440 468832 470496 480298 482560 485576 489216 490245 496860 497536 502320 506688 512256 514605 520260 522928 529984 535808 540960 544180 545664 548912 554190 554944 560280 563615 567840 571389 574080 586040 588120 591136 597632 606970 611520 618240 621920 627328 633360 640320 648960 653016 653660 662480 669760 675584 676338 682080 686140 693680 703248 720447 721280 723840 728364 738920 746304 747040 757120 761852 779520 784160 784392 789061 794976 803712 815360 816270 823368 832416 844480 849758 853760 865536 870688 879060 886704 896448 901784 908544 909440 910455 932880 937664 940992 952315 960596 971152 980490 993720 995072 1004640 1013376 1029210 1040520 1045856 1059968 1081920 1088360 1091328 1097824 1108380 1109888 1120560 1127230 1135680 1142778 1148160 1172080 1176240 1182272 1195264 1200745 1213940 1223040 1243840 1254656 1266720 1274637 1280640 1306032 1307320 1324960 1339520 1352676 1364160 1372280 1387360 1406496 1440894 1442560 1447680 1456728 1477840 1492608 1494080 1514240 1523704 1568320 1568784 1578122 1589952 1607424 1632540 1646736 1664832 1688960 1690845 1699516 1741376 1758120 1773408 1792896 1803568 1818880 1820910 1865760 1875328 1881984 1904630 1921192 1942304 1960980 1987440 2009280 2026752 2058420 2081040 2091712 2119936 2124395 2163840 2176720 2195648 2216760 2219776 2241120 2254460 2271360 2285556 2344160 2352480 2364544 2367183 2401490 2427880 2446080 2487680 2533440 2549274 2561280 2612064 2614640 2649920 2679040 2705352 2728320 2744560 2774720 2812992 2856945 2881788 2913456 2955680 2985216 2988160 3047408 3136640 3137568 3156244 3179904 3265080 3293472 3329664 3377920 3381690 3399032 3482752 3516240 3546816 3585792 3602235 3607136 3641820 3731520 3750656 3763968 3809260 3842384 3884608 3921960 3945305 3974880 4018560 4116840 4162080 4183424 4248790 4327680 4353440 4391296 4433520 4482240 4508920 4542720 4571112 4688320 4704960 4729088 4734366 4802980 4855760 4975360 5066880 5098548 5224128 5229280 5299840 5410704 5456640 5489120 5523427 5549440 5625984 5713890 5763576 5826912 5911360 5976320 6094816 6273280 6275136 6312488 6359808 6373185 6530160 6586944 6659328 6763380 6798064 6965504 7032480 7093632 7204470 7214272 7283640 7463040 7618520 7684768 7769216 7843920 7890610 7949760 8037120 8233680 8324160 8366848 8497580 8706880 8782592 8867040 8964480 9017840 9142224 9376640 9409920 9468732 9605960 9711520 10133760 10197096 10448256 10458560 10599680 10821408 10978240 11046854 11098880 11251968 11427780 11527152 11653824 11822720 11835915 12189632 12550272 12624976 12746370 13060320 13173888 13526760 13596128 14064960 14187264 14408940 14428544 14567280 14926080 15237040 15369536 15538432 15687840 15781220 15899520 16467360 16570281 16648320 16995160 17413760 17734080 17928960 18035680 18284448 18753280 18819840 18937464 19211920 19423040 20394192 20896512 20917120 21642816 21956480 22093708 22855560 23054304 23307648 23645440 23671830 24379264 25100544 25249952 25492740 26120640 26347776 27053520 27192256 27617135 28129920 28817880 28857088 29134560 30474080 30739072 31375680 31562440 31799040 32934720 33140562 33296640 33990320 34827520 35468160 36071360 36568896 37874928 38423840 38846080 40788384 41834240 43285632 43912960 44187416 45711120 46108608 46615296 47343660 48758528 50499904 50985480 52241280 54107040 54384512 55234270 56259840 57635760 58269120 60948160 61478144 62751360 63124880 65869440 66281124 67980640 70936320 72142720 73137792 75749856 76847680 77692160 81576768 82851405 86571264 88374832 91422240 92217216 94687320 100999808 101970960 104482560 108214080 108769024 110468540 115271520 116538240 121896320 125502720 126249760 131738880 132562248 135961280 144285440 146275584 151499712 153695360 163153536 165702810 176749664 182844480 184434432 189374640 201999616 203941920 216428160 220937080 230543040 233076480 243792640 252499520 265124496 271922560 302999424 307390720 326307072 331405620 353499328 365688960 378749280 407883840 432856320 441874160 461086080 504999040 530248992 543845120 605998848 662811240 706998656 731377920 757498560 815767680 883748320 922172160 1009998080 1060497984 1325622480 1413997312 1514997120 1631535360 1767496640 2120995968 2651244960 3029994240 3534993280 4241991936 5302489920 7069986560 10604979840 21209959680
• Sum of all divisors σ(n): 92106564480
• Sum of proper divisors (its aliquot sum) s(n): 70896604800
• 21209959680 is an abundant number, because the sum of its proper divisors (70896604800) is greater than itself. Its abundance is 49686645120

Bases of 21209959680

• Binary: 10011110000001101100100110100000000₂
• Hexadecimal: 0x4F0364D00
• Base-36: 9QRV1MO

Squares and roots of 21209959680

• 21209959680 squared (21209959680²) is 449862389627225702400
• 21209959680 cubed (21209959680³) is 9541563145541907378163679232000
• The square root of 21209959680 is 145636.3954511371
• The cube root of 21209959680 is 2768.0883507277

Scales and comparisons

• 21,209,959,680 seconds is equal to 674 years, 21 weeks, 2 days, 15 hours, 28 minutes.
• To count from 1 to 21,209,959,680 would take you about one thousand, three hundred forty-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 21209959680 cubic inches would be around 230.7 feet tall.

Recreational maths with 21209959680

• 21209959680 backwards is 08695990212
• The number of decimal digits it has is: 11
• The sum of 21209959680's digits is 51
• More coming soon!