21067139808

Names of 21067139808

• Cardinal: 21067139808 can be written as Twenty-one billion, sixty-seven million, one hundred thirty-nine thousand, eight hundred eight.

Scientific notation

• Scientific notation: 2.1067139808 × 10¹⁰

Factors of 21067139808

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 157

Divisors of 21067139808

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 13 16 18 19 22 24 26 32 33 36 38 39 44 48 52 57 66 72 76 78 88 96 99 104 109 114 117 132 143 144 152 156 169 171 176 198 208 209 218 228 234 247 264 286 288 304 312 327 338 342 352 361 396 416 418 429 436 456 468 494 507 528 572 608 624 627 654 676 684 722 741 792 836 858 872 912 936 981 988 1014 1056 1083 1144 1199 1248 1254 1287 1308 1352 1368 1417 1444 1482 1521 1584 1672 1716 1744 1824 1859 1872 1881 1962 1976 2028 2071 2166 2223 2288 2398 2508 2574 2616 2704 2717 2736 2834 2888 2964 3042 3168 3211 3249 3344 3432 3488 3597 3718 3744 3762 3924 3952 3971 4056 4142 4251 4332 4446 4576 4693 4796 5016 5148 5232 5408 5434 5472 5577 5668 5776 5928 6084 6213 6422 6498 6688 6864 7194 7436 7524 7848 7904 7942 8112 8151 8284 8502 8664 8892 9386 9592 9633 10032 10296 10464 10791 10868 11154 11336 11552 11856 11913 12168 12426 12753 12844 12996 13728 14079 14388 14872 15048 15587 15696 15884 16224 16302 16568 16731 17004 17328 17784 18421 18639 18772 19184 19266 20064 20592 21582 21736 22308 22672 22781 23712 23826 24336 24453 24852 25506 25688 25992 26923 28158 28776 28899 29744 30096 31174 31392 31768 32604 33136 33462 34008 34656 35321 35568 35739 36842 37278 37544 38368 38532 39349 41184 42237 43164 43472 44616 45344 45562 46761 47652 48672 48906 49704 51012 51376 51623 51984 53846 55263 56316 57552 57798 59488 60192 61009 62348 63536 65208 66272 66924 68016 68343 70642 71136 71478 73684 74556 75088 77064 78698 80769 84474 86328 86944 89232 91124 93522 95304 97812 99408 102024 102752 103246 103968 105963 107692 110526 112632 115104 115596 118047 122018 124696 127072 130416 133848 136032 136686 140283 141284 142956 147368 149112 150176 154128 154869 157396 161538 165789 168948 172656 178464 182248 183027 187044 190608 195624 198816 202631 204048 205029 206492 211926 215384 221052 225264 231192 236094 242307 244036 249392 260832 267696 273372 280566 282568 285912 294736 296153 298224 308256 309738 314792 317889 323076 331578 337896 345312 349999 354141 364496 366054 374088 381216 391248 405262 408096 410058 412984 423852 430768 432839 442104 450528 462384 464607 472188 484614 488072 498784 511537 535392 546744 549081 561132 565136 571824 589472 592306 596448 607893 619476 629584 635778 646152 663156 671099 675792 699998 708282 728992 732108 748176 782496 810524 820116 825968 847704 861536 865678 884208 888459 924768 929214 944376 969228 976144 1023074 1049997 1093488 1098162 1122264 1130272 1143648 1184612 1215786 1238952 1259168 1271556 1292304 1298517 1326312 1342198 1351584 1399996 1416564 1464216 1496352 1534611 1621048 1640232 1651936 1695408 1731356 1768416 1776918 1823679 1858428 1888752 1938456 1952288 2013297 2046148 2099994 2186976 2196324 2244528 2369224 2431572 2477904 2543112 2584608 2597034 2652624 2665377 2684396 2799992 2833128 2928432 3069222 3149991 3242096 3280464 3390816 3462712 3553836 3647358 3716856 3777504 3849989 3876912 3895551 4026594 4092296 4199988 4392648 4489056 4603833 4738448 4863144 4955808 5086224 5194068 5305248 5330754 5368792 5599984 5626907 5666256 5856864 6039891 6138444 6299982 6484192 6560928 6649981 6925424 7107672 7294716 7433712 7699978 7753824 7791102 8053188 8184592 8399976 8785296 9207666 9476896 9726288 10172448 10388136 10661508 10737584 11199968 11253814 11332512 11549967 12079782 12276888 12599964 13299962 13850848 14215344 14589432 14867424 15399956 15582204 16106376 16369184 16799952 16880721 17570592 18415332 19452576 19949943 20776272 21323016 21475168 22507628 23099934 24159564 24553776 25199928 26599924 28430688 29178864 30799912 31164408 32212752 33599904 33761442 34649901 36830664 39899886 41552544 42646032 45015256 46199868 48319128 49107552 50399856 50642163 53199848 58357728 59849829 61599824 62328816 64425504 67522884 69299802 73149791 73661328 79799772 85292064 90030512 92399736 96638256 100799712 101284326 106399696 119699658 123199648 124657632 135045768 138599604 146299582 147322656 159599544 180061024 184799472 193276512 202568652 212799392 219449373 239399316 270091536 277199208 292599164 319199088 369598944 405137304 438898746 478798632 540183072 554398416 585198328 638398176 658348119 810274608 877797492 957597264 1108796832 1170396656 1316696238 1620549216 1755594984 1915194528 2340793312 2633392476 3511189968 5266784952 7022379936 10533569904 21067139808
• Sum of all divisors σ(n): 75376140840
• Sum of proper divisors (its aliquot sum) s(n): 54309001032
• 21067139808 is an abundant number, because the sum of its proper divisors (54309001032) is greater than itself. Its abundance is 33241861224

Bases of 21067139808

• Binary: 10011100111101100110000101011100000₂
• Hexadecimal: 0x4E7B30AE0
• Base-36: 9OETX40

Squares and roots of 21067139808

• 21067139808 squared (21067139808²) is 443824379689818276864
• 21067139808 cubed (21067139808³) is 9350110257124277312807539802112
• The square root of 21067139808 is 145145.2369456195
• The cube root of 21067139808 is 2761.8612650129

Scales and comparisons

• 21,067,139,808 seconds is equal to 669 years, 45 weeks, 1 day, 15 hours, 16 minutes, 48 seconds.
• To count from 1 to 21,067,139,808 would take you about one thousand, three hundred thirty-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 21067139808 cubic inches would be around 230.2 feet tall.

Recreational maths with 21067139808

• 21067139808 backwards is 80893176012
• The number of decimal digits it has is: 11
• The sum of 21067139808's digits is 45
• More coming soon!