21704067840

Names of 21704067840

• Cardinal: 21704067840 can be written as Twenty-one billion, seven hundred four million, sixty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.170406784 × 10¹⁰

Factors of 21704067840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 516

Divisors of 21704067840

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 19 20 21 24 26 28 30 32 35 38 39 40 42 48 49 52 56 57 60 64 65 70 76 78 80 84 91 95 96 98 104 105 112 114 120 128 130 133 140 147 152 156 160 168 182 190 192 195 196 208 210 224 228 240 245 247 256 260 266 273 280 285 294 304 312 320 336 364 380 384 390 392 399 416 420 448 455 456 467 480 490 494 520 532 546 560 570 588 608 624 637 640 665 672 728 735 741 760 768 780 784 798 832 840 896 910 912 931 934 960 980 988 1040 1064 1092 1120 1140 1176 1216 1235 1248 1274 1280 1330 1344 1365 1401 1456 1470 1482 1520 1560 1568 1596 1664 1680 1729 1792 1820 1824 1862 1868 1911 1920 1960 1976 1995 2080 2128 2184 2240 2280 2335 2352 2432 2470 2496 2548 2660 2688 2730 2793 2802 2912 2940 2964 3040 3120 3136 3185 3192 3269 3328 3360 3458 3640 3648 3705 3724 3736 3822 3840 3920 3952 3990 4160 4256 4368 4480 4560 4655 4670 4704 4864 4940 4992 5096 5187 5320 5376 5460 5586 5604 5824 5880 5928 6071 6080 6240 6272 6370 6384 6538 6720 6916 7005 7280 7296 7410 7448 7472 7644 7840 7904 7980 8320 8512 8645 8736 8873 8960 9120 9310 9340 9408 9555 9807 9880 9984 10192 10374 10640 10920 11172 11208 11648 11760 11856 12103 12142 12160 12480 12544 12740 12768 13076 13440 13832 13965 14010 14560 14592 14820 14896 14944 15288 15680 15808 15960 16345 16640 17024 17290 17472 17746 18213 18240 18620 18680 18816 19110 19614 19760 20384 20748 21280 21840 22344 22416 22883 23296 23520 23712 24206 24284 24320 24960 25480 25536 25935 26152 26619 26880 27664 27930 28020 29120 29640 29792 29888 30355 30576 31360 31616 31920 32690 34048 34580 34944 35492 36309 36426 36480 37240 37360 37632 38220 39228 39520 40768 41496 42497 42560 43680 44365 44688 44832 45766 47040 47424 48412 48568 49035 49920 50960 51072 51870 52304 53238 55328 55860 56040 58240 59280 59584 59776 60515 60710 61152 62111 62720 63232 63840 65380 68649 69160 69888 70984 72618 72852 72960 74480 74720 76440 78456 79040 81536 82992 84994 85120 87360 88730 89376 89664 91065 91532 94080 94848 96824 97136 98070 101920 102144 103740 104608 106476 110656 111720 112080 114415 115349 116480 118560 119168 119552 121030 121420 122304 124222 127491 127680 130760 133095 137298 138320 141968 145236 145704 148960 149440 152880 156912 158080 163072 165984 169988 170240 174720 177460 178752 179328 181545 182130 183064 186333 188160 189696 193648 194272 196140 203840 207480 209216 212485 212952 221312 223440 224160 228830 230698 237120 238336 242060 242840 244608 248444 254982 255360 261520 266190 274596 276640 283936 290472 291408 297479 297920 298880 305760 310555 313824 316160 331968 339976 343245 346047 349440 354920 357504 358656 363090 364260 366128 372666 387296 388544 392280 407680 414960 418432 424970 425904 434777 442624 446880 448320 457660 461396 474240 484120 485680 489216 496888 509964 510720 523040 532380 549192 553280 567872 576745 580944 582816 594958 595840 597760 611520 621110 627648 637455 663936 679952 686490 692094 709840 715008 726180 728520 732256 745332 774592 777088 784560 807443 815360 829920 836864 849940 851808 869554 892437 893760 896640 915320 922792 931665 948480 968240 971360 993776 1019928 1046080 1064760 1098384 1106560 1135744 1153490 1161888 1165632 1189916 1191680 1223040 1242220 1255296 1274910 1304331 1327872 1359904 1372980 1384188 1419680 1452360 1457040 1464512 1487395 1490664 1549184 1554176 1569120 1614886 1659840 1699880 1703616 1730235 1739108 1784874 1787520 1793280 1830640 1845584 1863330 1936480 1942720 1987552 2039856 2092160 2129520 2173885 2196768 2213120 2271488 2306980 2323776 2331264 2379832 2422329 2446080 2484440 2510592 2549820 2608662 2719808 2745960 2768376 2839360 2904720 2914080 2929024 2974790 2981328 3098368 3138240 3229772 3319680 3399760 3407232 3460470 3478216 3569748 3575040 3661280 3691168 3726660 3872960 3885440 3975104 4037215 4079712 4184320 4259040 4347770 4393536 4462185 4613960 4647552 4662528 4759664 4844658 4968880 5099640 5217324 5439616 5491920 5536752 5652101 5678720 5809440 5828160 5858048 5949580 5962656 6276480 6459544 6521655 6639360 6799520 6814464 6920940 6956432 7139496 7322560 7382336 7453320 7745920 7770880 7950208 8074430 8159424 8518080 8695540 8787072 8924370 9227920 9295104 9519328 9689316 9937760 10199280 10434648 10879232 10983840 11073504 11304202 11357440 11618880 11656320 11899160 11925312 12111645 12552960 12919088 13043310 13599040 13841880 13912864 14278992 14645120 14764672 14906640 15491840 15900416 16148860 16318848 16956303 17036160 17391080 17574144 17848740 18455840 19038656 19378632 19875520 20398560 20869296 21967680 22147008 22608404 23237760 23312640 23798320 23850624 24223290 25838176 26086620 27198080 27683760 27825728 28260505 28557984 29290240 29529344 29813280 32297720 32637696 33912606 34072320 34782160 35697480 36911680 38077312 38757264 39751040 40797120 41738592 43935360 44294016 45216808 46475520 47596640 47701248 48446580 51676352 52173240 54396160 55367520 55651456 56521010 57115968 59626560 64595440 67825212 69564320 71394960 73823360 76154624 77514528 79502080 81594240 83477184 84781515 87870720 88588032 90433616 95193280 96893160 103352704 104346480 110735040 111302912 113042020 114231936 119253120 129190880 135650424 139128640 142789920 147646720 155029056 163188480 166954368 169563030 180867232 190386560 193786320 206705408 208692960 221470080 226084040 228463872 238506240 258381760 271300848 278257280 285579840 310058112 333908736 339126060 361734464 380773120 387572640 417385920 442940160 452168080 516763520 542601696 556514560 571159680 620116224 678252120 723468928 775145280 834771840 904336160 1033527040 1085203392 1142319360 1356504240 1446937856 1550290560 1669543680 1808672320 2170406784 2713008480 3100581120 3617344640 4340813568 5426016960 7234689280 10852033920 21704067840
• Sum of all divisors σ(n): 91603249920
• Sum of proper divisors (its aliquot sum) s(n): 69899182080
• 21704067840 is an abundant number, because the sum of its proper divisors (69899182080) is greater than itself. Its abundance is 48195114240

Bases of 21704067840

• Binary: 10100001101101010011100101100000000₂
• Hexadecimal: 0x50DA9CB00
• Base-36: 9YY1HXC

Squares and roots of 21704067840

• 21704067840 squared (21704067840²) is 471066560803322265600
• 21704067840 cubed (21704067840³) is 10224060592830791349964898304000
• The square root of 21704067840 is 147323.0051281877
• The cube root of 21704067840 is 2789.4187301543

Scales and comparisons

• 21,704,067,840 seconds is equal to 690 years, 6 weeks, 2 days, 11 hours, 44 minutes.
• To count from 1 to 21,704,067,840 would take you about one thousand, three hundred eighty 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 21704067840 cubic inches would be around 232.5 feet tall.

Recreational maths with 21704067840

• 21704067840 backwards is 04876040712
• 21704067840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21704067840's digits is 39
• More coming soon!