21011356800

Names of 21011356800

• Cardinal: 21011356800 can be written as Twenty-one billion, eleven million, three hundred fifty-six thousand, eight hundred.

Scientific notation

• Scientific notation: 2.10113568 × 10¹⁰

Factors of 21011356800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 726

Divisors of 21011356800

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 27 28 30 32 35 36 40 42 45 48 49 50 54 56 60 63 64 70 72 75 80 84 90 96 98 100 105 108 112 120 126 128 135 140 144 147 150 160 168 175 180 189 192 196 200 210 216 224 225 240 245 252 270 280 288 294 300 315 320 336 343 350 360 378 384 392 400 420 432 441 448 450 480 490 504 525 540 560 576 588 600 630 640 672 675 686 700 709 720 735 756 784 800 840 864 882 896 900 945 960 980 1008 1029 1050 1080 1120 1152 1176 1200 1225 1260 1323 1344 1350 1372 1400 1418 1440 1470 1512 1568 1575 1600 1680 1715 1728 1764 1800 1890 1920 1960 2016 2058 2100 2127 2160 2205 2240 2352 2400 2450 2520 2646 2688 2700 2744 2800 2836 2880 2940 3024 3087 3136 3150 3200 3360 3430 3456 3528 3545 3600 3675 3780 3920 4032 4116 4200 4254 4320 4410 4480 4704 4725 4800 4900 4963 5040 5145 5292 5400 5488 5600 5672 5760 5880 6048 6174 6272 6300 6381 6615 6720 6860 7056 7090 7200 7350 7560 7840 8064 8232 8400 8508 8575 8640 8820 9261 9408 9450 9600 9800 9926 10080 10290 10584 10635 10800 10976 11025 11200 11344 11760 12096 12348 12600 12762 13230 13440 13720 14112 14180 14400 14700 14889 15120 15435 15680 16464 16800 17016 17150 17280 17640 17725 18522 18816 18900 19143 19600 19852 20160 20580 21168 21270 21600 21952 22050 22400 22688 23520 24192 24696 24815 25200 25524 25725 26460 27440 28224 28360 28800 29400 29778 30240 30870 31360 31905 32928 33075 33600 34032 34300 34741 35280 35450 37044 37800 38286 39200 39704 40320 41160 42336 42540 43200 43904 44100 44667 45376 46305 47040 49392 49630 50400 51048 51450 52920 53175 54880 56448 56720 58800 59556 60480 61740 63810 65856 66150 67200 68064 68600 69482 70560 70900 74088 74445 75600 76572 77175 78400 79408 82320 84672 85080 86400 88200 89334 90752 92610 94080 95715 98784 99260 100800 102096 102900 104223 105840 106350 109760 113440 117600 119112 120960 123480 124075 127620 131712 132300 134001 136128 137200 138964 141120 141800 148176 148890 151200 153144 154350 156800 158816 159525 164640 169344 170160 173705 176400 178668 185220 191430 197568 198520 201600 204192 205800 208446 211680 212700 219520 223335 226880 231525 235200 238224 243187 246960 248150 255240 264600 268002 272256 274400 277928 282240 283600 296352 297780 302400 306288 308700 312669 317632 319050 329280 340320 347410 352800 357336 370440 372225 382860 395136 397040 408384 411600 416892 423360 425400 446670 453760 463050 470400 476448 478575 486374 493920 496300 510480 521115 529200 536004 548800 555856 567200 592704 595560 604800 612576 617400 625338 635264 638100 658560 670005 680640 694820 705600 714672 729561 740880 744450 765720 794080 816768 823200 833784 846720 850800 868525 893340 926100 938007 952896 957150 972748 987840 992600 1020960 1042230 1058400 1072008 1097600 1111712 1116675 1134400 1185408 1191120 1215935 1225152 1234800 1250676 1276200 1340010 1361280 1389640 1411200 1429344 1459122 1481760 1488900 1531440 1563345 1588160 1646400 1667568 1701600 1737050 1786680 1852200 1876014 1905792 1914300 1945496 1975680 1985200 2041920 2084460 2116800 2144016 2188683 2223424 2233350 2268800 2382240 2431870 2450304 2469600 2501352 2552400 2605575 2680020 2779280 2858688 2918244 2963520 2977800 3062880 3126690 3176320 3292800 3335136 3350025 3403200 3474100 3573360 3647805 3704400 3752028 3828600 3890992 3970400 4083840 4168920 4233600 4288032 4377366 4446848 4466700 4690035 4764480 4863740 4939200 5002704 5104800 5211150 5360040 5558560 5717376 5836488 5927040 5955600 6079675 6125760 6253380 6566049 6670272 6700050 6806400 6948200 7146720 7295610 7408800 7504056 7657200 7781984 7816725 7940800 8337840 8576064 8754732 8933400 9380070 9528960 9727480 9878400 10005408 10209600 10422300 10720080 10943415 11117120 11672976 11911200 12159350 12251520 12506760 13132098 13340544 13400100 13896400 14293440 14591220 14817600 15008112 15314400 15563968 15633450 15881600 16675680 17152128 17509464 17866800 18239025 18760140 19454960 20010816 20419200 20844600 21440160 21886830 22234240 23345952 23450175 23822400 24318700 25013520 26264196 26800200 27792800 28586880 29182440 29635200 30016224 30628800 31127936 31266900 32830245 33351360 35018928 35733600 36478050 37520280 38909920 40021632 41689200 42880320 43773660 46691904 46900350 47644800 48637400 50027040 52528392 53600400 54717075 55585600 58364880 60032448 61257600 62533800 65660490 66702720 70037856 71467200 72956100 75040560 77819840 83378400 85760640 87547320 93383808 93800700 97274800 100054080 105056784 107200800 109434150 111171200 116729760 120064896 125067600 131320980 140075712 142934400 145912200 150081120 155639680 164151225 166756800 175094640 187601400 194549600 200108160 210113568 214401600 218868300 233459520 250135200 262641960 280151424 291824400 300162240 328302450 333513600 350189280 375202800 389099200 420227136 428803200 437736600 466919040 500270400 525283920 583648800 600324480 656604900 700378560 750405600 778198400 840454272 875473200 1000540800 1050567840 1167297600 1313209800 1400757120 1500811200 1750946400 2101135680 2334595200 2626419600 3001622400 3501892800 4202271360 5252839200 7003785600 10505678400 21011356800
• Sum of all divisors σ(n): 89800800000
• Sum of proper divisors (its aliquot sum) s(n): 68789443200
• 21011356800 is an abundant number, because the sum of its proper divisors (68789443200) is greater than itself. Its abundance is 47778086400

Bases of 21011356800

• Binary: 10011100100010111111101110010000000₂
• Hexadecimal: 0x4E45FDC80
• Base-36: 9NHMAO0

Squares and roots of 21011356800

• 21011356800 squared (21011356800²) is 441477114576906240000
• 21011356800 cubed (21011356800³) is 9276033173409858048786432000000
• The square root of 21011356800 is 144952.9468482791
• The cube root of 21011356800 is 2759.4214288187

Scales and comparisons

• 21,011,356,800 seconds is equal to 668 years, 5 weeks.
• To count from 1 to 21,011,356,800 would take you about one thousand, three hundred thirty-six 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 21011356800 cubic inches would be around 230 feet tall.

Recreational maths with 21011356800

• 21011356800 backwards is 00865311012
• 21011356800 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21011356800's digits is 27
• More coming soon!