21018009600

Names of 21018009600

• Cardinal: 21018009600 can be written as Twenty-one billion, eighteen million, nine thousand, six hundred.

Scientific notation

• Scientific notation: 2.10180096 × 10¹⁰

Factors of 21018009600

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 198

Divisors of 21018009600

• Number of divisors d(n): 840
• 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 50 54 56 60 63 64 70 72 75 80 81 84 90 96 100 105 108 112 120 126 128 135 140 144 150 160 162 168 175 180 181 189 192 200 210 216 224 225 240 252 256 270 280 288 300 315 320 324 336 350 360 362 378 384 400 405 420 432 448 450 480 504 512 525 540 543 560 567 576 600 630 640 648 672 675 700 720 724 756 768 800 810 840 864 896 900 905 945 960 1008 1024 1050 1080 1086 1120 1134 1152 1200 1260 1267 1280 1296 1344 1350 1400 1440 1448 1512 1536 1575 1600 1620 1629 1680 1728 1792 1800 1810 1890 1920 2016 2025 2048 2100 2160 2172 2240 2268 2304 2400 2520 2534 2560 2592 2688 2700 2715 2800 2835 2880 2896 3024 3072 3150 3200 3240 3258 3360 3456 3584 3600 3620 3780 3801 3840 4032 4050 4096 4200 4320 4344 4480 4525 4536 4608 4725 4800 4887 5040 5068 5120 5184 5376 5400 5430 5600 5670 5760 5792 6048 6144 6300 6335 6400 6480 6516 6720 6912 7168 7200 7240 7560 7602 7680 8064 8100 8145 8192 8400 8640 8688 8960 9050 9072 9216 9450 9600 9774 10080 10136 10240 10368 10752 10800 10860 11200 11340 11403 11520 11584 12096 12288 12600 12670 12800 12960 13032 13440 13575 13824 14175 14336 14400 14480 14661 15120 15204 15360 16128 16200 16290 16800 17280 17376 17920 18100 18144 18432 18900 19005 19200 19548 20160 20272 20480 20736 21504 21600 21720 22400 22680 22806 23040 23168 24192 24435 24576 25200 25340 25600 25920 26064 26880 27150 27648 28350 28672 28800 28960 29322 30240 30408 30720 31675 32256 32400 32580 33600 34209 34560 34752 35840 36200 36288 36864 37800 38010 38400 39096 40320 40544 40725 40960 41472 43008 43200 43440 44800 45360 45612 46080 46336 48384 48870 50400 50680 51200 51840 52128 53760 54300 55296 56700 57015 57344 57600 57920 58644 60480 60816 61440 63350 64512 64800 65160 67200 68418 69120 69504 71680 72400 72576 73305 73728 75600 76020 76800 78192 80640 81088 81450 82944 86016 86400 86880 89600 90720 91224 92160 92672 95025 96768 97740 100800 101360 102400 102627 103680 104256 107520 108600 110592 113400 114030 115200 115840 117288 120960 121632 122175 122880 126700 129024 129600 130320 134400 136836 138240 139008 143360 144800 145152 146610 151200 152040 153600 156384 161280 162176 162900 165888 171045 172032 172800 173760 179200 181440 182448 184320 185344 190050 193536 195480 201600 202720 204800 205254 207360 208512 215040 217200 221184 226800 228060 230400 231680 234576 241920 243264 244350 253400 258048 259200 260640 268800 273672 276480 278016 285075 286720 289600 290304 293220 302400 304080 307200 312768 322560 324352 325800 331776 342090 345600 347520 358400 362880 364896 366525 368640 370688 380100 387072 390960 403200 405440 410508 414720 417024 430080 434400 453600 456120 460800 463360 469152 483840 486528 488700 506800 513135 516096 518400 521280 537600 547344 552960 556032 570150 579200 580608 586440 604800 608160 614400 625536 645120 648704 651600 663552 684180 691200 695040 716800 725760 729792 733050 741376 760200 774144 781920 806400 810880 821016 829440 834048 855225 860160 868800 907200 912240 921600 926720 938304 967680 973056 977400 1013600 1026270 1036800 1042560 1075200 1094688 1105920 1112064 1140300 1158400 1161216 1172880 1209600 1216320 1251072 1290240 1297408 1303200 1368360 1382400 1390080 1433600 1451520 1459584 1466100 1482752 1520400 1548288 1563840 1612800 1621760 1642032 1658880 1668096 1710450 1737600 1814400 1824480 1843200 1853440 1876608 1935360 1946112 1954800 2027200 2052540 2073600 2085120 2150400 2189376 2224128 2280600 2316800 2322432 2345760 2419200 2432640 2502144 2565675 2580480 2594816 2606400 2736720 2764800 2780160 2903040 2919168 2932200 3040800 3127680 3225600 3243520 3284064 3317760 3336192 3420900 3475200 3628800 3648960 3706880 3753216 3870720 3892224 3909600 4054400 4105080 4147200 4170240 4300800 4378752 4448256 4561200 4633600 4644864 4691520 4838400 4865280 5004288 5131350 5189632 5212800 5473440 5529600 5560320 5806080 5838336 5864400 6081600 6255360 6451200 6487040 6568128 6672384 6841800 6950400 7257600 7297920 7413760 7506432 7741440 7784448 7819200 8108800 8210160 8294400 8340480 8757504 9122400 9267200 9383040 9676800 9730560 10008576 10262700 10379264 10425600 10946880 11120640 11612160 11676672 11728800 12163200 12510720 12902400 12974080 13136256 13344768 13683600 13900800 14515200 14595840 15012864 15568896 15638400 16217600 16420320 16588800 16680960 17515008 18244800 18534400 18766080 19353600 19461120 20017152 20525400 20851200 21893760 22241280 23224320 23353344 23457600 24326400 25021440 25948160 26272512 27367200 27801600 29030400 29191680 30025728 31137792 31276800 32435200 32840640 33361920 35030016 36489600 37068800 37532160 38707200 38922240 40034304 41050800 41702400 43787520 46706688 46915200 48652800 50042880 51896320 52545024 54734400 55603200 58060800 58383360 60051456 62553600 64870400 65681280 66723840 70060032 72979200 75064320 77844480 82101600 83404800 87575040 93413376 93830400 97305600 100085760 105090048 109468800 111206400 116121600 116766720 120102912 125107200 129740800 131362560 140120064 145958400 150128640 155688960 164203200 166809600 175150080 187660800 194611200 200171520 210180096 218937600 233533440 250214400 259481600 262725120 280240128 291916800 300257280 328406400 333619200 350300160 375321600 389222400 420360192 437875200 467066880 500428800 525450240 583833600 600514560 656812800 700600320 750643200 778444800 840720384 875750400 1000857600 1050900480 1167667200 1313625600 1401200640 1501286400 1751500800 2101800960 2335334400 2627251200 3002572800 3503001600 4203601920 5254502400 7006003200 10509004800 21018009600
• Sum of all divisors σ(n): 89475033648
• Sum of proper divisors (its aliquot sum) s(n): 68457024048
• 21018009600 is an abundant number, because the sum of its proper divisors (68457024048) is greater than itself. Its abundance is 47439014448

Bases of 21018009600

• Binary: 10011100100110001010110000000000000₂
• Hexadecimal: 0x4E4C56000
• Base-36: 9NLKW00

Squares and roots of 21018009600

• 21018009600 squared (21018009600²) is 441756727545692160000
• 21018009600 cubed (21018009600³) is 9284847140419942257524736000000
• The square root of 21018009600 is 144975.8931684851
• The cube root of 21018009600 is 2759.7126354877

Scales and comparisons

• 21,018,009,600 seconds is equal to 668 years, 16 weeks.
• To count from 1 to 21,018,009,600 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 21018009600 cubic inches would be around 230 feet tall.

Recreational maths with 21018009600

• 21018009600 backwards is 00690081012
• 21018009600 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21018009600's digits is 27
• More coming soon!