21421026816

Names of 21421026816

• Cardinal: 21421026816 can be written as Twenty-one billion, four hundred twenty-one million, twenty-six thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.1421026816 × 10¹⁰

Factors of 21421026816

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 198

Divisors of 21421026816

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 19 21 23 24 28 32 38 42 46 47 48 56 57 64 69 76 84 92 94 96 97 112 114 128 133 138 141 152 161 168 184 188 192 194 224 228 256 266 276 282 291 304 322 329 336 368 376 384 388 399 437 448 456 483 512 532 552 564 582 608 644 658 672 679 736 752 768 776 798 874 893 896 912 966 987 1064 1081 1104 1128 1164 1216 1288 1311 1316 1344 1358 1472 1504 1536 1552 1596 1748 1786 1792 1824 1843 1932 1974 2037 2128 2162 2208 2231 2256 2328 2432 2576 2622 2632 2679 2688 2716 2944 3008 3059 3104 3192 3243 3496 3572 3584 3648 3686 3864 3948 4074 4256 4324 4416 4462 4512 4559 4656 4864 5152 5244 5264 5358 5376 5432 5529 5888 6016 6118 6208 6251 6384 6486 6693 6992 7144 7296 7372 7567 7728 7896 8148 8512 8648 8832 8924 9024 9118 9177 9312 9728 10304 10488 10528 10716 10752 10864 11058 11776 12032 12236 12416 12502 12768 12901 12972 13386 13677 13984 14288 14592 14744 15134 15456 15617 15792 16296 17024 17296 17664 17848 18048 18236 18354 18624 18753 20539 20608 20976 21056 21432 21728 22116 22701 24064 24472 24832 25004 25536 25802 25944 26772 27354 27968 28576 29184 29488 30268 30912 31234 31584 31913 32592 34048 34592 35328 35696 36096 36472 36708 37248 37506 38703 41078 41216 41952 42112 42389 42864 43456 44232 45402 46851 48944 49664 50008 51072 51604 51888 53544 54708 55936 57152 58976 60536 61617 61824 62468 63168 63826 65184 68096 69184 71392 72192 72944 73416 74496 75012 77406 82156 82432 83904 84224 84778 85728 86621 86912 88464 90804 93702 95739 97888 100016 102144 103208 103776 104857 107088 109416 111872 114304 117952 121072 123234 123648 124936 126336 127167 127652 130368 138368 142784 143773 145888 146832 148992 150024 154812 164312 167808 168448 169556 171456 173242 173824 176928 181608 187404 191478 195776 200032 204288 206416 207552 209714 214176 218832 223744 228608 235904 242144 246468 247296 249872 252672 254334 255304 259863 260736 276736 285568 287546 291776 293664 296723 300048 309624 314571 328624 335616 339112 342912 346484 347648 353856 363216 374808 382956 391552 400064 412832 415104 419428 428352 431319 437664 457216 471808 484288 492936 499744 505344 508668 510608 519726 521472 553472 571136 575092 583552 587328 593446 600096 606347 619248 629142 657248 671232 678224 685824 692968 707712 726432 733999 749616 765912 783104 800128 825664 830208 838856 856704 862638 875328 890169 943616 968576 985872 999488 1017336 1021216 1039452 1042944 1142272 1150184 1167104 1174656 1186892 1200192 1212694 1238496 1258284 1314496 1356448 1371648 1385936 1415424 1452864 1467998 1499232 1531824 1566208 1600256 1651328 1660416 1677712 1713408 1725276 1750656 1780338 1819041 1937152 1971744 1992283 1998976 2034672 2042432 2078904 2201997 2300368 2334208 2349312 2373784 2400384 2425388 2476992 2516568 2628992 2712896 2771872 2830848 2905728 2935996 2998464 3063648 3200512 3302656 3355424 3426816 3450552 3501312 3560676 3638082 3874304 3943488 3984566 3997952 4069344 4084864 4157808 4403994 4600736 4698624 4747568 4800768 4850776 4953984 5033136 5257984 5425792 5543744 5811456 5871992 5976849 5996928 6127296 6605312 6710848 6901104 7002624 7121352 7276164 7886976 7969132 7995904 8138688 8169728 8315616 8807988 9201472 9495136 9601536 9701552 9907968 10066272 10515968 10851584 11087488 11622912 11743984 11953698 11993856 12254592 13421696 13802208 13945981 14242704 14552328 15773952 15938264 16277376 16339456 16631232 17615976 18402944 18990272 19403104 19815936 20132544 21703168 22174976 23487968 23907396 23987712 24509184 26843392 27604416 27891962 28485408 29104656 31547904 31876528 32554752 33262464 35231952 36805888 37980544 38806208 40265088 41837943 44349952 46975936 47814792 49018368 53686784 55208832 55783924 56970816 58209312 63753056 65109504 66524928 70463904 73611776 75961088 77612416 80530176 83675886 93951872 95629584 110417664 111567848 113941632 116418624 127506112 133049856 140927808 151922176 155224832 161060352 167351772 187903744 191259168 220835328 223135696 227883264 232837248 255012224 281855616 310449664 334703544 375807488 382518336 446271392 455766528 465674496 510024448 563711232 669407088 765036672 892542784 931348992 1020048896 1127422464 1338814176 1530073344 1785085568 2677628352 3060146688 3570171136 5355256704 7140342272 10710513408 21421026816
• Sum of all divisors σ(n): 73915269120
• Sum of proper divisors (its aliquot sum) s(n): 52494242304
• 21421026816 is an abundant number, because the sum of its proper divisors (52494242304) is greater than itself. Its abundance is 31073215488

Bases of 21421026816

• Binary: 10011111100110010101110111000000000₂
• Hexadecimal: 0x4FCCAEE00
• Base-36: 9U9IY2O

Squares and roots of 21421026816

• 21421026816 squared (21421026816²) is 458860389851791097856
• 21421026816 cubed (21421026816³) is 9829260715815431372803456106496
• The square root of 21421026816 is 146359.2389157581
• The cube root of 21421026816 is 2777.2401062371

Scales and comparisons

• 21,421,026,816 seconds is equal to 681 years, 6 weeks, 2 days, 13 hours, 13 minutes, 36 seconds.
• To count from 1 to 21,421,026,816 would take you about one thousand, three hundred sixty-two 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 21421026816 cubic inches would be around 231.4 feet tall.

Recreational maths with 21421026816

• 21421026816 backwards is 61862012412
• The number of decimal digits it has is: 11
• The sum of 21421026816's digits is 33
• More coming soon!