21213603840

Names of 21213603840

• Cardinal: 21213603840 can be written as Twenty-one billion, two hundred thirteen million, six hundred three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.121360384 × 10¹⁰

Factors of 21213603840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 473

Divisors of 21213603840

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 13 15 16 20 22 24 26 30 32 33 39 40 44 48 52 55 60 64 65 66 78 80 88 96 104 110 120 121 128 130 132 143 156 160 165 176 192 195 208 220 240 242 256 260 264 286 312 320 330 352 363 384 390 416 429 439 440 480 484 512 520 528 572 605 624 640 660 704 715 726 768 780 832 858 878 880 960 968 1024 1040 1056 1144 1210 1248 1280 1317 1320 1408 1430 1452 1536 1560 1573 1664 1716 1756 1760 1815 1920 1936 2048 2080 2112 2145 2195 2288 2420 2496 2560 2634 2640 2816 2860 2904 3072 3120 3146 3328 3432 3512 3520 3630 3840 3872 4160 4224 4290 4390 4576 4719 4829 4840 4992 5120 5268 5280 5632 5707 5720 5808 6144 6240 6292 6585 6656 6864 7024 7040 7260 7680 7744 7865 8320 8448 8580 8780 9152 9438 9658 9680 9984 10240 10536 10560 11264 11414 11440 11616 12480 12584 13170 13312 13728 14048 14080 14487 14520 15360 15488 15730 16640 16896 17121 17160 17560 18304 18876 19316 19360 19968 21072 21120 22528 22828 22880 23232 23595 24145 24960 25168 26340 26624 27456 28096 28160 28535 28974 29040 30720 30976 31460 33280 33792 34242 34320 35120 36608 37752 38632 38720 39936 42144 42240 45656 45760 46464 47190 48290 49920 50336 52680 53119 54912 56192 56320 57070 57948 58080 61952 62777 62920 66560 67584 68484 68640 70240 72435 73216 75504 77264 77440 79872 84288 84480 85605 91312 91520 92928 94380 96580 99840 100672 105360 106238 109824 112384 112640 114140 115896 116160 123904 125554 125840 133120 136968 137280 140480 144870 146432 151008 154528 154880 159357 168576 168960 171210 182624 183040 185856 188331 188760 193160 199680 201344 210720 212476 219648 224768 228280 231792 232320 247808 251108 251680 265595 273936 274560 280960 289740 292864 302016 309056 309760 313885 318714 337152 337920 342420 365248 366080 371712 376662 377520 386320 399360 402688 421440 424952 439296 449536 456560 463584 464640 502216 503360 531190 547872 549120 561920 579480 604032 618112 619520 627770 637428 674304 684840 690547 730496 732160 743424 753324 755040 772640 796785 805376 842880 849904 878592 899072 913120 927168 929280 941655 1004432 1006720 1062380 1095744 1098240 1123840 1158960 1208064 1236224 1239040 1255540 1274856 1348608 1369680 1381094 1460992 1464320 1506648 1510080 1545280 1593570 1610752 1685760 1699808 1826240 1854336 1858560 1883310 2008864 2013440 2071641 2124760 2191488 2196480 2247680 2317920 2416128 2472448 2511080 2549712 2697216 2739360 2762188 2921984 3013296 3020160 3090560 3187140 3221504 3371520 3399616 3452735 3652480 3708672 3717120 3766620 4017728 4026880 4143282 4249520 4382976 4392960 4495360 4635840 4832256 4944896 5022160 5099424 5478720 5524376 5843968 6026592 6040320 6181120 6374280 6743040 6799232 6905470 7304960 7417344 7533240 8035456 8053760 8286564 8499040 8765952 9271680 9664512 9889792 10044320 10198848 10358205 10957440 11048752 11687936 12053184 12080640 12362240 12748560 13486080 13598464 13810940 14609920 14834688 15066480 16070912 16107520 16573128 16998080 17531904 18543360 20088640 20397696 20716410 21914880 22097504 24106368 24161280 24724480 25497120 27196928 27621880 29219840 29669376 30132960 32141824 33146256 33996160 35063808 37086720 40177280 40795392 41432820 43829760 44195008 48212736 48322560 49448960 50994240 54393856 55243760 58439680 60265920 64283648 66292512 67992320 74173440 80354560 81590784 82865640 87659520 88390016 96425472 101988480 108787712 110487520 120531840 128567296 132585024 135984640 148346880 160709120 163181568 165731280 175319040 176780032 192850944 203976960 220975040 241063680 265170048 271969280 321418240 326363136 331462560 353560064 385701888 407953920 441950080 482127360 530340096 543938560 642836480 662925120 707120128 815907840 883900160 964254720 1060680192 1325850240 1414240256 1631815680 1767800320 1928509440 2121360384 2651700480 3535600640 4242720768 5303400960 7071201280 10606801920 21213603840
• Sum of all divisors σ(n): 80518838400
• Sum of proper divisors (its aliquot sum) s(n): 59305234560
• 21213603840 is an abundant number, because the sum of its proper divisors (59305234560) is greater than itself. Its abundance is 38091630720

Bases of 21213603840

• Binary: 10011110000011011011110100000000000₂
• Hexadecimal: 0x4F06DE800
• Base-36: 9QU15HC

Squares and roots of 21213603840

• 21213603840 squared (21213603840²) is 450016987880462745600
• 21213603840 cubed (21213603840³) is 9546482102166217961037103104000
• The square root of 21213603840 is 145648.9060721021
• The cube root of 21213603840 is 2768.2468734115

Scales and comparisons

• 21,213,603,840 seconds is equal to 674 years, 27 weeks, 2 days, 19 hours, 44 minutes.
• To count from 1 to 21,213,603,840 would take you about one thousand, three hundred forty-nine 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 21213603840 cubic inches would be around 230.7 feet tall.

Recreational maths with 21213603840

• 21213603840 backwards is 04830631212
• 21213603840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21213603840's digits is 30
• More coming soon!