221428297728

Names of 221428297728

• Cardinal: 221428297728 can be written as Two hundred twenty-one billion, four hundred twenty-eight million, two hundred ninety-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.21428297728 × 10¹¹

Factors of 221428297728

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 159

Divisors of 221428297728

• Number of divisors d(n): 1040
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 17 18 22 24 27 32 33 34 36 43 44 48 51 54 64 66 68 72 81 83 86 88 96 99 102 108 128 129 132 136 144 153 162 166 172 176 187 192 198 204 216 249 256 258 264 272 288 297 306 324 332 344 352 374 384 387 396 408 432 459 473 498 512 516 528 544 561 576 594 612 648 664 688 704 731 747 748 768 774 792 816 864 891 913 918 946 996 1024 1032 1056 1088 1122 1152 1161 1188 1224 1296 1328 1376 1377 1408 1411 1419 1462 1494 1496 1536 1548 1584 1632 1683 1728 1782 1826 1836 1892 1992 2048 2064 2112 2176 2193 2241 2244 2304 2322 2376 2448 2592 2656 2739 2752 2754 2816 2822 2838 2924 2988 2992 3072 3096 3168 3264 3366 3456 3483 3564 3569 3652 3672 3784 3984 4096 4128 4224 4233 4257 4352 4386 4482 4488 4608 4644 4752 4896 5049 5184 5312 5478 5504 5508 5632 5644 5676 5848 5976 5984 6144 6192 6336 6528 6579 6723 6732 6912 6966 7128 7138 7304 7344 7568 7968 8041 8217 8256 8448 8466 8514 8704 8772 8964 8976 9216 9288 9504 9792 10098 10368 10624 10707 10956 11008 11016 11264 11288 11352 11696 11952 11968 12288 12384 12672 12699 12771 13056 13158 13446 13464 13824 13932 14256 14276 14608 14688 15136 15147 15521 15936 16082 16434 16512 16896 16932 17028 17408 17544 17928 17952 18432 18576 19008 19584 19737 20196 20736 21248 21414 21912 22016 22032 22528 22576 22704 23392 23904 23936 24123 24651 24768 25344 25398 25542 26112 26316 26892 26928 27648 27864 28512 28552 29216 29376 30272 30294 31042 31872 32121 32164 32868 33024 33792 33864 34056 34816 35088 35856 35904 36864 37152 38016 38097 38313 39168 39259 39474 40392 41472 42496 42828 43824 44032 44064 45056 45152 45408 46563 46784 47808 47872 48246 49302 49536 50688 50796 51084 52224 52632 53784 53856 55296 55728 57024 57104 58432 58752 59211 60544 60588 60673 62084 63744 64242 64328 65736 66048 67584 67728 68112 69632 70176 71712 71808 72369 73953 74304 76032 76194 76626 78336 78518 78948 80784 82944 84992 85656 87648 88064 88128 90304 90816 93126 93568 95616 95744 96363 96492 98604 99072 101376 101592 102168 104448 105264 107568 107712 110592 111456 114048 114208 114291 116864 117504 117777 118422 121088 121176 121346 124168 127488 128484 128656 131472 132096 135168 135456 136224 139689 140352 143424 143616 144738 147906 148608 152064 152388 153252 156672 157036 157896 161568 165888 169984 171312 175296 176128 176256 180608 181632 182019 186252 187136 191232 191488 192726 192984 197208 198144 202752 203184 204336 208896 210528 215136 215424 217107 222912 228096 228416 228582 233728 235008 235554 236844 242176 242352 242692 248336 254976 256968 257312 262944 264192 270912 272448 279378 280704 286848 287232 289089 289476 295812 297216 304128 304776 306504 313344 314072 315792 323136 331776 339968 342624 350592 352512 353331 361216 363264 364038 372504 374272 382464 382976 385452 385968 394416 396288 405504 406368 408672 419067 421056 430272 430848 434214 445824 456192 456832 457164 467456 470016 471108 473688 484352 484704 485384 496672 509952 513936 514624 525888 528384 541824 544896 546057 558756 561408 573696 574464 578178 578952 591624 594432 608256 609552 613008 626688 628144 631584 646272 651321 667403 685248 701184 705024 706662 722432 726528 728076 745008 748544 764928 765952 770904 771936 788832 792576 812736 817344 838134 842112 860544 861696 868428 891648 912384 913664 914328 934912 940032 942216 947376 968704 969408 970768 993344 1019904 1027872 1029248 1051776 1059993 1083648 1089792 1092114 1117512 1122816 1147392 1148928 1156356 1157904 1183248 1188864 1216512 1219104 1226016 1256288 1257201 1263168 1292544 1302642 1334806 1370496 1402368 1410048 1413324 1444864 1453056 1456152 1490016 1497088 1529856 1541808 1543872 1577664 1585152 1625472 1634688 1638171 1676268 1684224 1721088 1723392 1736856 1783296 1824768 1827328 1828656 1869824 1880064 1884432 1894752 1937408 1938816 1941536 1986688 2002209 2055744 2058496 2103552 2119986 2167296 2179584 2184228 2235024 2245632 2294784 2297856 2312712 2315808 2366496 2377728 2438208 2452032 2512576 2514402 2526336 2585088 2605284 2669612 2740992 2804736 2820096 2826648 2889728 2906112 2912304 2980032 2994176 3059712 3083616 3087744 3155328 3179979 3250944 3269376 3276342 3352536 3368448 3442176 3446784 3473712 3566592 3649536 3654656 3657312 3739648 3768864 3789504 3877632 3883072 3973376 4004418 4111488 4116992 4207104 4239972 4334592 4359168 4368456 4470048 4491264 4589568 4625424 4631616 4732992 4755456 4876416 4904064 4914513 5025152 5028804 5052672 5170176 5210568 5339224 5481984 5609472 5640192 5653296 5779456 5812224 5824608 5960064 6006627 6167232 6175488 6310656 6359958 6501888 6538752 6552684 6705072 6736896 6884352 6893568 6947424 7133184 7309312 7314624 7537728 7579008 7755264 7766144 7946752 8008836 8222976 8233984 8414208 8479944 8669184 8718336 8736912 8940096 8982528 9179136 9250848 9263232 9465984 9752832 9808128 9829026 10050304 10057608 10105344 10340352 10421136 10678448 10963968 11218944 11306592 11649216 11920128 12013254 12334464 12350976 12621312 12719916 13003776 13077504 13105368 13410144 13473792 13768704 13894848 14266368 14618624 14629248 15075456 15158016 15510528 15532288 15893504 16017672 16445952 16467968 16828416 16959888 17338368 17436672 17473824 17880192 18019881 18501696 18526464 18931968 19505664 19616256 19658052 20100608 20115216 20210688 20680704 20842272 21356896 21927936 22613184 23298432 23840256 24026508 24668928 24701952 25242624 25439832 26007552 26155008 26210736 26820288 26947584 27537408 27789696 29258496 30150912 30316032 31021056 31064576 31787008 32035344 32891904 32935936 33656832 33919776 34947648 35760384 36039762 37003392 37052928 37863936 39011328 39232512 39316104 40201216 40230432 40421376 41684544 42713792 43855872 45226368 46596864 47680512 48053016 49337856 49403904 50485248 50879664 52015104 52310016 52421472 53640576 54059643 55579392 58516992 60301824 60632064 62042112 62129152 63574016 64070688 65783808 67839552 69895296 71520768 72079524 74006784 74105856 75727872 78022656 78465024 78632208 80402432 80460864 80842752 83369088 85427584 90452736 93193728 95361024 96106032 98675712 98807808 100970496 101759328 104842944 107281152 108119286 111158784 117033984 120603648 121264128 124258304 128141376 131567616 135679104 139790592 143041536 144159048 148013568 148211712 151455744 156045312 156930048 157264416 160804864 160921728 166738176 170855168 180905472 186387456 190722048 192212064 197351424 203518656 209685888 214562304 216238572 222317568 234067968 241207296 242528256 248516608 256282752 271358208 279581184 286083072 288318096 296027136 296423424 302911488 314528832 321843456 333476352 341710336 361810944 372774912 384424128 394702848 407037312 419371776 429124608 432477144 444635136 468135936 482414592 512565504 542716416 559162368 572166144 576636192 592054272 629057664 643686912 666952704 683420672 723621888 745549824 768848256 814074624 838743552 858249216 864954288 889270272 1025131008 1085432832 1118324736 1153272384 1184108544 1258115328 1287373824 1333905408 1366841344 1447243776 1537696512 1628149248 1677487104 1716498432 1729908576 2050262016 2170865664 2236649472 2306544768 2516230656 2574747648 2667810816 2733682688 3075393024 3256298496 3354974208 3459817152 4100524032 4341731328 4613089536 5032461312 5149495296 6150786048 6512596992 6709948416 6919634304 8201048064 9226179072 10064922624 12301572096 13025193984 13839268608 18452358144 20129845248 24603144192 27678537216 36904716288 55357074432 73809432576 110714148864 221428297728
• Sum of all divisors σ(n): 791239591296
• Sum of proper divisors (its aliquot sum) s(n): 569811293568
• 221428297728 is an abundant number, because the sum of its proper divisors (569811293568) is greater than itself. Its abundance is 348382995840

Bases of 221428297728

• Binary: 11001110001110001001111011000000000000₂
• Hexadecimal: 0x338E27B000
• Base-36: 2TQ0OW00

Squares and roots of 221428297728

• 221428297728 squared (221428297728²) is 49030491034719809961984
• 221428297728 cubed (221428297728³) is 10856738166585972865321773513572352
• The square root of 221428297728 is 470561.6832339837
• The cube root of 221428297728 is 6049.8467527423

Scales and comparisons

• 221,428,297,728 seconds is equal to 7,040 years, 38 weeks, 1 day, 12 hours, 28 minutes, 48 seconds.
• To count from 1 to 221,428,297,728 would take you about fourteen thousand and eighty-one 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 221428297728 cubic inches would be around 504.2 feet tall.

Recreational maths with 221428297728

• 221428297728 backwards is 827792824122
• 221428297728 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 221428297728's digits is 54
• More coming soon!