21164322816

Names of 21164322816

• Cardinal: 21164322816 can be written as Twenty-one billion, one hundred sixty-four million, three hundred twenty-two thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.1164322816 × 10¹⁰

Factors of 21164322816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 726

Divisors of 21164322816

• Number of divisors d(n): 520
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 32 36 39 42 48 52 54 56 63 64 72 78 81 84 91 96 104 108 112 117 126 128 144 156 162 168 182 189 192 208 216 224 234 252 256 273 288 312 324 336 351 364 378 384 416 432 448 468 504 512 546 567 576 624 648 672 701 702 728 756 768 819 832 864 896 936 1008 1024 1053 1092 1134 1152 1248 1296 1344 1402 1404 1456 1512 1536 1638 1664 1728 1792 1872 2016 2048 2103 2106 2184 2268 2304 2457 2496 2592 2688 2804 2808 2912 3024 3072 3276 3328 3456 3584 3744 4032 4096 4206 4212 4368 4536 4608 4907 4914 4992 5184 5376 5608 5616 5824 6048 6144 6309 6552 6656 6912 7168 7371 7488 8064 8412 8424 8736 9072 9113 9216 9814 9828 9984 10368 10752 11216 11232 11648 12096 12288 12618 13104 13312 13824 14336 14721 14742 14976 16128 16824 16848 17472 18144 18226 18432 18927 19628 19656 19968 20736 21504 22432 22464 23296 24192 25236 26208 26624 27339 27648 28672 29442 29484 29952 32256 33648 33696 34944 36288 36452 36864 37854 39256 39312 39936 41472 43008 44163 44864 44928 46592 48384 50472 52416 53248 54678 55296 56781 58884 58968 59904 63791 64512 67296 67392 69888 72576 72904 75708 78512 78624 79872 82017 82944 86016 88326 89728 89856 93184 96768 100944 104832 109356 110592 113562 117768 117936 119808 127582 129024 132489 134592 134784 139776 145152 145808 151416 157024 157248 159744 164034 165888 176652 179456 179712 186368 191373 193536 201888 209664 218712 227124 235536 235872 239616 246051 255164 258048 264978 269184 269568 279552 290304 291616 302832 314048 314496 328068 331776 353304 358912 359424 372736 382746 387072 397467 403776 419328 437424 454248 471072 471744 479232 492102 510328 529956 538368 539136 559104 574119 580608 583232 605664 628096 628992 656136 706608 717824 718848 738153 765492 774144 794934 807552 838656 874848 908496 942144 943488 984204 1020656 1059912 1076736 1078272 1118208 1148238 1161216 1166464 1211328 1256192 1257984 1312272 1413216 1435648 1437696 1476306 1530984 1589868 1615104 1677312 1722357 1749696 1816992 1884288 1886976 1968408 2041312 2119824 2153472 2156544 2296476 2322432 2332928 2422656 2512384 2515968 2624544 2826432 2871296 2952612 3061968 3179736 3230208 3354624 3444714 3499392 3633984 3768576 3773952 3936816 4082624 4239648 4306944 4313088 4592952 4665856 4845312 5024768 5031936 5167071 5249088 5652864 5905224 6123936 6359472 6460416 6889428 6998784 7267968 7537152 7547904 7873632 8165248 8479296 8613888 9185904 9331712 9690624 10049536 10063872 10334142 10498176 11305728 11810448 12247872 12718944 12920832 13778856 13997568 14535936 15074304 15095808 15747264 16330496 16958592 18371808 18663424 19381248 20099072 20668284 20996352 22611456 23620896 24495744 25437888 25841664 27557712 27995136 29071872 30148608 30191616 31494528 32660992 33917184 36743616 37326848 38762496 41336568 41992704 45222912 47241792 48991488 50875776 55115424 55990272 58143744 60297216 62989056 65321984 67834368 73487232 77524992 82673136 83985408 90445824 94483584 97982976 101751552 110230848 111980544 116287488 125978112 130643968 135668736 146974464 165346272 167970816 180891648 188967168 195965952 203503104 220461696 232574976 251956224 261287936 271337472 293948928 330692544 335941632 377934336 391931904 407006208 440923392 503912448 542674944 587897856 661385088 755868672 783863808 814012416 881846784 1007824896 1175795712 1322770176 1511737344 1628024832 1763693568 2351591424 2645540352 3023474688 3527387136 5291080704 7054774272 10582161408 21164322816
• Sum of all divisors σ(n): 77925111264
• Sum of proper divisors (its aliquot sum) s(n): 56760788448
• 21164322816 is an abundant number, because the sum of its proper divisors (56760788448) is greater than itself. Its abundance is 35596465632

Bases of 21164322816

• Binary: 10011101101011111011111000000000000₂
• Hexadecimal: 0x4ED7DF000
• Base-36: 9Q0OW00

Squares and roots of 21164322816

• 21164322816 squared (21164322816²) is 447928560259858169856
• 21164322816 cubed (21164322816³) is 9480104647845747153207344234496
• The square root of 21164322816 is 145479.6302442373
• The cube root of 21164322816 is 2766.1015862295

Scales and comparisons

• 21,164,322,816 seconds is equal to 672 years, 49 weeks, 6 days, 10 hours, 33 minutes, 36 seconds.
• To count from 1 to 21,164,322,816 would take you about one thousand, three hundred forty-five 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 21164322816 cubic inches would be around 230.5 feet tall.

Recreational maths with 21164322816

• 21164322816 backwards is 61822346112
• 21164322816 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21164322816's digits is 36
• More coming soon!