21085821120

Names of 21085821120

• Cardinal: 21085821120 can be written as Twenty-one billion, eighty-five million, eight hundred twenty-one thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.108582112 × 10¹⁰

Factors of 21085821120

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 100

Divisors of 21085821120

• Number of divisors d(n): 1008
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 29 30 32 35 39 40 41 42 48 49 52 56 58 60 64 65 70 78 80 82 84 87 91 96 98 104 105 112 116 120 123 130 140 145 147 156 160 164 168 174 182 192 195 196 203 205 208 210 224 232 240 245 246 260 273 280 287 290 294 312 320 328 336 348 364 377 390 392 406 410 416 420 435 448 455 464 480 490 492 520 533 546 560 574 580 588 609 615 624 637 656 672 696 728 735 754 780 784 812 820 832 840 841 861 870 910 928 960 980 984 1015 1040 1066 1092 1120 1131 1148 1160 1176 1189 1218 1230 1248 1274 1312 1344 1365 1392 1421 1435 1456 1470 1508 1560 1568 1599 1624 1640 1680 1682 1722 1740 1820 1856 1885 1911 1960 1968 2009 2030 2080 2132 2184 2240 2262 2296 2320 2352 2378 2436 2460 2496 2523 2548 2624 2639 2665 2730 2784 2842 2870 2912 2940 3016 3045 3120 3136 3185 3198 3248 3280 3360 3364 3444 3480 3567 3640 3731 3770 3822 3920 3936 4018 4060 4160 4205 4263 4264 4305 4368 4524 4592 4640 4704 4756 4872 4920 5046 5096 5278 5330 5460 5568 5655 5684 5740 5824 5880 5887 5945 6027 6032 6090 6240 6370 6396 6496 6560 6720 6728 6888 6960 7105 7134 7280 7462 7540 7644 7840 7872 7917 7995 8036 8120 8323 8410 8526 8528 8610 8736 9048 9184 9280 9408 9512 9555 9744 9840 10045 10092 10192 10556 10660 10920 10933 11193 11310 11368 11480 11760 11774 11890 12054 12064 12180 12480 12615 12740 12792 12992 13120 13195 13456 13776 13920 14210 14268 14560 14924 15080 15288 15457 15680 15834 15990 16072 16240 16646 16820 17052 17056 17220 17472 17661 17835 18096 18368 18473 18655 19024 19110 19488 19680 20090 20184 20384 21112 21315 21320 21840 21866 22386 22620 22736 22960 23520 23548 23780 24108 24128 24360 24969 25230 25480 25584 26117 26390 26912 27552 27840 28420 28536 29120 29435 29848 30135 30160 30576 30914 31668 31980 32144 32480 32799 33292 33640 34104 34112 34440 34481 35322 35670 36192 36946 37310 38048 38220 38976 39360 39585 40180 40368 40768 41209 41615 42224 42630 42640 43680 43732 44772 45240 45472 45920 46371 47040 47096 47560 48216 48720 49938 50460 50960 51168 52234 52780 53824 54665 55104 55419 55965 56840 57072 58261 58870 59696 60270 60320 61152 61828 63336 63960 64288 64960 65598 66584 67280 68208 68880 68962 70644 71340 72384 73892 74620 76096 76440 76531 77285 78351 79170 80360 80736 82418 83230 84448 85260 85280 87360 87464 88305 89544 90480 90944 91840 92365 92742 94192 95120 96432 97440 99876 100920 101920 102336 103443 104468 105560 108199 109330 110838 111930 113680 114144 116522 117740 119392 120540 120640 122304 123627 123656 124845 126672 127920 128576 130585 131196 133168 134560 136416 137760 137924 141288 142680 147784 149240 152880 153062 154570 156702 158340 160720 161472 163995 164836 166460 168896 170520 170560 172405 174783 174928 176610 179088 180960 184730 185484 188384 190240 192864 194880 199752 201840 203840 206045 206886 208936 211120 216398 218660 221676 223860 227360 228288 229593 231855 233044 235480 238784 241080 241367 247254 247312 249690 253344 255840 261170 262392 266336 269120 272832 275520 275848 277095 282576 285360 291305 295568 298480 305760 306124 309140 313404 316680 321440 324597 327990 329672 332920 341040 344810 349566 349856 353220 358176 361920 369460 370968 376768 380480 382655 385728 391755 399504 403680 412090 413772 417872 422240 432796 437320 443352 447720 448253 454720 459186 463710 466088 470960 482160 482734 494508 494624 499380 506688 511680 517215 522340 524784 532672 535717 540995 551696 554190 565152 570720 582610 591136 596960 611520 612248 618135 618280 626808 633360 642880 649194 655980 659344 665840 682080 689620 699132 699712 706440 716352 724101 738920 741936 757393 765310 783510 799008 807360 824180 827544 835744 844480 865592 873915 874640 886704 895440 896506 918372 927420 932176 941920 964320 965468 989016 989248 998760 1034430 1044680 1049568 1071434 1081990 1103392 1108380 1130304 1141440 1147965 1165220 1182272 1193920 1206835 1224496 1236270 1236560 1253616 1266720 1298388 1311960 1318688 1331680 1344759 1364160 1379240 1398264 1412880 1448202 1477840 1483872 1514786 1530620 1567020 1598016 1607151 1622985 1648360 1655088 1671488 1689569 1731184 1747830 1749280 1773408 1790880 1793012 1836744 1854840 1864352 1883840 1928640 1930936 1978032 1997520 2068860 2089360 2099136 2142868 2163980 2206784 2216760 2241265 2272179 2295930 2330440 2413670 2448992 2472540 2473120 2507232 2533440 2596776 2623920 2637376 2663360 2678585 2689518 2758480 2796528 2825760 2896404 2955680 2967744 3029572 3061240 3134040 3137771 3214302 3245970 3296720 3310176 3379138 3462368 3495660 3498560 3546816 3581760 3586024 3620505 3673488 3709680 3728704 3786965 3861872 3956064 3995040 4137720 4178720 4285736 4327960 4433520 4482530 4544358 4591860 4660880 4827340 4897984 4945080 4946240 5014464 5068707 5193552 5247840 5357170 5379036 5516960 5593056 5651520 5792808 5911360 6059144 6122480 6268080 6275542 6428604 6491940 6593440 6620352 6723795 6758276 6924736 6991320 7172048 7241010 7346976 7419360 7573930 7723744 7912128 7990080 8035755 8275440 8357440 8447845 8571472 8655920 8867040 8965060 9088716 9183720 9321760 9413313 9654680 9890160 10137414 10387104 10495680 10714340 10758072 11033920 11186112 11360895 11585616 12118288 12244960 12536160 12551084 12857208 12983880 13186880 13447590 13516552 13982640 14344096 14482020 14693952 14838720 15147860 15447488 15688855 16071510 16550880 16895690 17142944 17311840 17734080 17930120 18177432 18367440 18643520 18826626 19309360 19780320 20274828 20774208 21428680 21516144 21964397 22721790 23171232 24236576 24489920 25072320 25102168 25343535 25714416 25967760 26895180 27033104 27965280 28688192 28964040 30295720 31377710 32143020 33101760 33791380 34285888 34623680 35860240 36354864 36734880 37653252 38618720 39560640 40549656 42857360 43032288 43928794 45443580 46342464 47066565 48473152 50204336 50687070 51428832 51935520 53790360 54066208 55930560 57928080 60591440 62755420 64286040 65893191 67582760 71720480 72709728 73469760 75306504 77237440 81099312 85714720 86064576 87857588 90887160 94133130 100408672 101374140 102857664 103871040 107580720 108132416 109821985 115856160 121182880 125510840 128572080 131786382 135165520 143440960 145419456 150613008 162198624 171429440 175715176 181774320 188266260 200817344 202748280 215161440 219643970 231712320 242365760 251021680 257144160 263572764 270331040 301226016 324397248 329465955 351430352 363548640 376532520 405496560 430322880 439287940 502043360 514288320 527145528 540662080 602452032 658931910 702860704 727097280 753065040 810993120 878575880 1004086720 1054291056 1317863820 1405721408 1506130080 1621986240 1757151760 2108582112 2635727640 3012260160 3514303520 4217164224 5271455280 7028607040 10542910560 21085821120
• Sum of all divisors σ(n): 88978544928
• Sum of proper divisors (its aliquot sum) s(n): 67892723808
• 21085821120 is an abundant number, because the sum of its proper divisors (67892723808) is greater than itself. Its abundance is 46806902688

Bases of 21085821120

• Binary: 10011101000110100000001100011000000₂
• Hexadecimal: 0x4E8D018C0
• Base-36: 9OPYBPC

Squares and roots of 21085821120

• 21085821120 squared (21085821120²) is 444611852304638054400
• 21085821120 cubed (21085821120³) is 9375005985527457761423228928000
• The square root of 21085821120 is 145209.5765436977
• The cube root of 21085821120 is 2762.6773851139

Scales and comparisons

• 21,085,821,120 seconds is equal to 670 years, 24 weeks, 20 hours, 32 minutes.
• To count from 1 to 21,085,821,120 would take you about one thousand, three hundred forty 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 21085821120 cubic inches would be around 230.2 feet tall.

Recreational maths with 21085821120

• 21085821120 backwards is 02112858012
• 21085821120 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21085821120's digits is 30
• More coming soon!