21388603392

Names of 21388603392

• Cardinal: 21388603392 can be written as Twenty-one billion, three hundred eighty-eight million, six hundred three thousand, three hundred ninety-two.

Scientific notation

• Scientific notation: 2.1388603392 × 10¹⁰

Factors of 21388603392

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 66

Divisors of 21388603392

• Number of divisors d(n): 728
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 27 29 32 36 38 39 48 52 54 57 58 64 72 76 78 81 87 96 104 108 114 116 117 128 144 152 156 162 171 174 192 208 216 228 232 234 243 247 256 261 288 304 312 324 342 348 351 377 384 416 432 456 464 468 486 494 512 513 522 551 576 608 624 648 684 696 702 729 741 754 768 783 832 864 912 928 936 972 988 1024 1026 1044 1053 1102 1131 1152 1216 1248 1296 1368 1392 1404 1458 1482 1508 1536 1539 1566 1653 1664 1728 1824 1856 1872 1944 1976 2048 2052 2088 2106 2204 2223 2262 2304 2349 2432 2496 2592 2736 2784 2808 2916 2964 3016 3072 3078 3132 3159 3306 3328 3393 3456 3648 3712 3744 3888 3952 4096 4104 4176 4212 4408 4446 4524 4608 4617 4698 4864 4959 4992 5184 5472 5568 5616 5832 5928 6032 6144 6156 6264 6318 6612 6656 6669 6786 6912 7047 7163 7296 7424 7488 7776 7904 8208 8352 8424 8816 8892 9048 9216 9234 9396 9477 9728 9918 9984 10179 10368 10944 11136 11232 11664 11856 12064 12288 12312 12528 12636 13224 13312 13338 13572 13824 13851 14094 14326 14592 14848 14877 14976 15552 15808 16416 16704 16848 17632 17784 18096 18432 18468 18792 18954 19456 19836 19968 20007 20358 20736 21141 21489 21888 22272 22464 23328 23712 24128 24624 25056 25272 26448 26624 26676 27144 27648 27702 28188 28652 29184 29696 29754 29952 30537 31104 31616 32832 33408 33696 35264 35568 36192 36864 36936 37584 37908 38912 39672 39936 40014 40716 41472 42282 42978 43776 44544 44631 44928 46656 47424 48256 49248 50112 50544 52896 53248 53352 54288 55296 55404 56376 57304 58368 59392 59508 59904 60021 61074 62208 63232 64467 65664 66816 67392 70528 71136 72384 73872 75168 75816 77824 79344 79872 80028 81432 82944 84564 85956 87552 89088 89262 89856 91611 93312 94848 96512 98496 100224 101088 105792 106704 108576 110592 110808 112752 114608 116736 118784 119016 119808 120042 122148 124416 126464 128934 131328 133632 133893 134784 141056 142272 144768 147744 150336 151632 158688 159744 160056 162864 165888 169128 171912 175104 178176 178524 179712 180063 183222 186624 189696 193024 193401 196992 200448 202176 211584 213408 217152 221616 225504 229216 233472 238032 239616 240084 244296 248832 252928 257868 262656 267264 267786 269568 274833 282112 284544 289536 295488 300672 303264 317376 320112 325728 331776 338256 343824 350208 356352 357048 359424 360126 366444 373248 379392 386048 386802 393984 400896 401679 404352 423168 426816 434304 443232 451008 458432 476064 479232 480168 488592 497664 505856 515736 525312 534528 535572 539136 549666 564224 569088 579072 580203 590976 601344 606528 634752 640224 651456 676512 687648 700416 714096 718848 720252 732888 746496 758784 772096 773604 787968 801792 803358 808704 846336 853632 868608 886464 902016 916864 952128 960336 977184 995328 1011712 1031472 1050624 1069056 1071144 1078272 1099332 1128448 1138176 1158144 1160406 1181952 1202688 1213056 1269504 1280448 1302912 1353024 1375296 1428192 1437696 1440504 1465776 1492992 1517568 1544192 1547208 1575936 1603584 1606716 1617408 1692672 1707264 1737216 1740609 1772928 1804032 1833728 1904256 1920672 1954368 2062944 2101248 2142288 2156544 2198664 2256896 2276352 2316288 2320812 2363904 2405376 2426112 2539008 2560896 2605824 2706048 2750592 2856384 2881008 2931552 2985984 3035136 3094416 3151872 3207168 3213432 3234816 3385344 3414528 3474432 3481218 3545856 3608064 3667456 3808512 3841344 3908736 4125888 4284576 4313088 4397328 4552704 4632576 4641624 4727808 4810752 4852224 5078016 5121792 5211648 5221827 5412096 5501184 5712768 5762016 5863104 6188832 6303744 6426864 6469632 6770688 6829056 6948864 6962436 7091712 7216128 7334912 7617024 7682688 7817472 8251776 8569152 8794656 9105408 9283248 9455616 9621504 9704448 10156032 10243584 10423296 10443654 10824192 11002368 11425536 11524032 11726208 12377664 12853728 12939264 13658112 13897728 13924872 14183424 14432256 14669824 15234048 15365376 15634944 16503552 17138304 17589312 18566496 18911232 19408896 20312064 20487168 20846592 20887308 21648384 22004736 22851072 23048064 23452416 24755328 25707456 27316224 27849744 28366848 28864512 29339648 30468096 30730752 31269888 33007104 34276608 35178624 37132992 38817792 40974336 41693184 41774616 43296768 44009472 45702144 46096128 46904832 49510656 51414912 55699488 56733696 60936192 61461504 62539776 66014208 68553216 70357248 74265984 81948672 83549232 86593536 88018944 91404288 92192256 93809664 99021312 102829824 111398976 122923008 125079552 132028416 137106432 140714496 148531968 167098464 182808576 184384512 187619328 198042624 205659648 222797952 245846016 264056832 274212864 281428992 297063936 334196928 368769024 375238656 396085248 411319296 445595904 548425728 562857984 594127872 668393856 737538048 792170496 822638592 891191808 1125715968 1188255744 1336787712 1645277184 1782383616 2376511488 2673575424 3564767232 5347150848 7129534464 10694301696 21388603392
• Sum of all divisors σ(n): 75203209200
• Sum of proper divisors (its aliquot sum) s(n): 53814605808
• 21388603392 is an abundant number, because the sum of its proper divisors (53814605808) is greater than itself. Its abundance is 32426002416

Bases of 21388603392

• Binary: 10011111010110111000011000000000000₂
• Hexadecimal: 0x4FADC3000
• Base-36: 9TQ8000

Squares and roots of 21388603392

• 21388603392 squared (21388603392²) is 457472355060273905664
• 21388603392 cubed (21388603392³) is 9784694765188402823134118412288
• The square root of 21388603392 is 146248.4303915771
• The cube root of 21388603392 is 2775.8381643453

Scales and comparisons

• 21,388,603,392 seconds is equal to 680 years, 4 weeks, 5 days, 6 hours, 43 minutes, 12 seconds.
• To count from 1 to 21,388,603,392 would take you about one thousand, three hundred sixty 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 21388603392 cubic inches would be around 231.3 feet tall.

Recreational maths with 21388603392

• 21388603392 backwards is 29330688312
• The number of decimal digits it has is: 11
• The sum of 21388603392's digits is 45
• More coming soon!