18221812440

Names of 18221812440

• Cardinal: 18221812440 can be written as Eighteen billion, two hundred twenty-one million, eight hundred twelve thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.822181244 × 10¹⁰

Factors of 18221812440

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 131

Divisors of 18221812440

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 17 19 20 24 26 29 30 34 38 39 40 43 51 52 57 58 60 65 68 76 78 85 86 87 95 102 104 114 116 120 129 130 136 145 152 156 170 172 174 190 195 204 215 221 228 232 247 255 258 260 285 290 312 323 340 344 348 377 380 390 408 430 435 442 456 493 494 510 516 520 551 559 570 580 645 646 663 680 696 731 741 754 760 780 817 841 860 870 884 969 986 988 1020 1032 1102 1105 1118 1131 1140 1160 1235 1247 1290 1292 1326 1462 1479 1482 1508 1560 1615 1634 1653 1677 1682 1720 1740 1768 1885 1938 1972 1976 2040 2193 2204 2210 2236 2262 2280 2451 2465 2470 2494 2523 2580 2584 2652 2755 2795 2924 2958 2964 3016 3230 3268 3306 3315 3354 3364 3480 3655 3705 3741 3770 3876 3944 4085 4199 4205 4386 4408 4420 4472 4524 4845 4902 4930 4940 4988 5046 5160 5304 5510 5590 5655 5848 5916 5928 6235 6409 6460 6536 6612 6630 6708 6728 7163 7310 7395 7410 7482 7540 7752 8170 8265 8385 8398 8410 8772 8840 9048 9367 9503 9690 9804 9860 9880 9976 10092 10621 10933 10965 11020 11180 11310 11832 12255 12470 12597 12615 12818 12920 13224 13260 13416 13889 14297 14326 14620 14790 14820 14964 15080 15979 16211 16340 16530 16770 16796 16820 17544 18705 18734 19006 19227 19380 19608 19720 20184 20995 21199 21242 21489 21866 21930 22040 22360 22620 23693 24510 24940 25194 25230 25636 26520 27778 28101 28509 28594 28652 29240 29580 29640 29928 31863 31958 32045 32422 32680 32799 33060 33540 33592 33640 35815 36163 37410 37468 38012 38454 38760 41667 41990 42398 42484 42891 42978 43732 43860 45240 46835 47386 47515 47937 48633 49020 49880 50388 50460 51272 53105 54665 55556 56202 57018 57188 57304 59160 62985 63597 63726 63916 64090 64844 65598 66120 67080 69445 71079 71485 71630 72326 74820 74936 76024 76908 79895 81055 83334 83980 84796 84968 85782 85956 87464 87720 93670 94772 95030 95874 96135 97266 98040 100776 100920 105995 106210 107445 108489 109330 111112 112404 114036 114376 118465 121771 125970 127194 127452 127832 128180 129688 131196 138890 140505 142158 142545 142970 143260 144652 149640 153816 159315 159790 162110 163995 166668 167960 169592 171564 171912 180557 180815 185861 187340 189544 190060 191748 192270 194532 207727 208335 211990 212420 214455 214890 216978 218660 224808 228072 236930 239685 243165 243542 251940 254388 254904 256360 262392 271643 275587 277780 281010 284316 285090 285940 286520 289304 308009 317985 318630 319580 324220 327990 333336 343128 355395 361114 361630 365313 371722 374680 380120 383496 384540 389064 402781 415454 416670 423980 424840 428910 429780 433956 437320 470119 473860 479370 486330 487084 503880 508776 541671 542445 543286 551174 555560 557583 562020 568632 570180 571880 608855 614771 616018 623181 635970 637260 639160 648440 655980 687097 710790 722228 723260 730626 743444 769080 805562 814929 826761 830908 833340 847960 857820 859560 867912 902785 924027 929305 940238 947720 958740 972660 974168 1038635 1083342 1084890 1086572 1102348 1115166 1124040 1140360 1208343 1217710 1229542 1232036 1246362 1271940 1274520 1311960 1358215 1374194 1377935 1410357 1421580 1444456 1446520 1461252 1486888 1540045 1611124 1629858 1653522 1661816 1666680 1715640 1805570 1826565 1844313 1848054 1858610 1880476 1917480 1945320 2013905 2061291 2077270 2166684 2169780 2173144 2204696 2230332 2350595 2416686 2435420 2459084 2464072 2492724 2543880 2708355 2716430 2748388 2755870 2787915 2820714 2843160 2922504 3073855 3080090 3115905 3222248 3259716 3307044 3435485 3531359 3611140 3653130 3688626 3696108 3717220 3760952 4027810 4074645 4122582 4133805 4154540 4333368 4339560 4460664 4620135 4701190 4833372 4870840 4918168 4985448 5236153 5416710 5432860 5496776 5511740 5575830 5641428 6041715 6147710 6160180 6231810 6519432 6614088 6870970 7051785 7062718 7222280 7306260 7377252 7392216 7434440 7992023 8055620 8149290 8245164 8267610 8309080 8932261 9221565 9240270 9402380 9666744 10306455 10472306 10594077 10833420 10865720 11023480 11151660 11282856 11680649 12083430 12295420 12320360 12463620 13741940 14103570 14125436 14612520 14754504 15708459 15984046 16111240 16298580 16490328 16535220 17656795 17864522 18443130 18480540 18804760 20612910 20944612 21188154 21666840 22303320 23361298 23976069 24166860 24590840 24927240 26180765 26796783 27483880 28207140 28250872 31416918 31968092 32597160 33070440 35041947 35313590 35729044 36886260 36961080 39960115 41225820 41889224 42376308 44661305 46722596 47952138 48333720 52361530 52970385 53593566 56414280 58403245 62833836 63936184 70083894 70627180 71458088 73772520 78542295 79920230 82451640 84752616 89322610 93445192 95904276 104723060 105940770 107187132 116806490 119880345 125667672 133983915 140167788 141254360 151848437 157084590 159840460 175209735 178645220 191808552 209446120 211881540 214374264 233612980 239760690 267967830 280335576 303696874 314169180 319680920 350419470 357290440 423763080 455545311 467225960 479521380 535935660 607393748 628338360 700838940 759242185 911090622 959042760 1071871320 1214787496 1401677880 1518484370 1822181244 2277726555 3036968740 3644362488 4555453110 6073937480 9110906220 18221812440
• Sum of all divisors σ(n): 69535065600
• Sum of proper divisors (its aliquot sum) s(n): 51313253160
• 18221812440 is an abundant number, because the sum of its proper divisors (51313253160) is greater than itself. Its abundance is 33091440720

Bases of 18221812440

• Binary: 10000111110000110101100101011011000₂
• Hexadecimal: 0x43E1ACAD8
• Base-36: 8DCSOGO

Squares and roots of 18221812440

• 18221812440 squared (18221812440²) is 332034448598538753600
• 18221812440 cubed (18221812440³) is 6050269445981394026170574784000
• The square root of 18221812440 is 134988.1937059681
• The cube root of 18221812440 is 2631.4625318743

Scales and comparisons

• 18,221,812,440 seconds is equal to 579 years, 20 weeks, 4 days, 14 hours, 34 minutes.
• To count from 1 to 18,221,812,440 would take you about one thousand, one hundred fifty-eight 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 18221812440 cubic inches would be around 219.3 feet tall.

Recreational maths with 18221812440

• 18221812440 backwards is 04421812281
• The number of decimal digits it has is: 11
• The sum of 18221812440's digits is 33
• More coming soon!