21490280448

Names of 21490280448

• Cardinal: 21490280448 can be written as Twenty-one billion, four hundred ninety million, two hundred eighty thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 2.1490280448 × 10¹⁰

Factors of 21490280448

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 61

Divisors of 21490280448

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 17 19 21 24 26 28 32 34 38 39 42 48 49 51 52 56 57 64 68 76 78 84 91 96 98 102 104 112 114 119 128 133 136 147 152 156 168 182 192 196 204 208 221 224 228 238 247 256 266 272 273 289 294 304 312 323 336 357 364 384 392 399 408 416 442 448 456 476 494 512 532 544 546 578 588 608 624 637 646 663 672 714 728 741 768 784 798 816 832 833 867 884 896 912 931 952 969 988 1024 1064 1088 1092 1156 1176 1216 1248 1274 1292 1326 1344 1428 1456 1482 1536 1547 1568 1596 1632 1664 1666 1729 1734 1768 1792 1824 1862 1904 1911 1938 1976 2023 2048 2128 2176 2184 2261 2312 2352 2432 2496 2499 2548 2584 2652 2688 2793 2856 2912 2964 3072 3094 3136 3192 3264 3328 3332 3458 3468 3536 3584 3648 3724 3757 3808 3822 3876 3952 4046 4199 4256 4352 4368 4522 4624 4641 4704 4864 4992 4998 5096 5168 5187 5304 5376 5491 5586 5712 5824 5928 6069 6144 6188 6272 6384 6528 6656 6664 6783 6916 6936 7072 7168 7296 7448 7514 7616 7644 7752 7904 8092 8398 8512 8704 8736 9044 9248 9282 9408 9728 9984 9996 10192 10336 10374 10608 10752 10829 10982 11172 11271 11424 11648 11856 12103 12138 12376 12544 12597 12768 13056 13312 13328 13566 13832 13872 14144 14161 14336 14592 14896 15028 15232 15288 15504 15808 15827 16184 16473 16796 17024 17408 17472 18088 18496 18564 18816 19456 19968 19992 20384 20672 20748 21216 21504 21658 21964 22344 22542 22848 23296 23712 24206 24276 24752 25088 25194 25536 26112 26299 26624 26656 27132 27664 27744 28288 28322 29184 29393 29792 30056 30464 30576 31008 31616 31654 32368 32487 32946 33592 34048 34816 34944 36176 36309 36992 37128 37632 38437 38912 39936 39984 40768 41344 41496 42432 42483 43008 43316 43928 44688 45084 45696 46592 47424 47481 48412 48552 49504 50176 50388 51072 52224 52598 53312 54264 55328 55488 56576 56644 58368 58786 59584 60112 60928 61152 62016 63232 63308 64736 64974 65892 67184 68096 69888 71383 72352 72618 73984 74256 75264 76874 78897 79872 79968 81536 82688 82992 84864 84966 86632 87856 88179 89376 90168 91392 93184 94848 94962 96824 97104 99008 100352 100776 102144 104448 105196 106624 108528 110656 110976 113152 113288 115311 116736 117572 119168 120224 121856 122304 124032 126464 126616 129472 129948 131784 134368 136192 139776 142766 144704 145236 147968 148512 150528 153748 157794 159936 163072 165376 165984 169728 169932 173264 175712 176358 178752 180336 182784 184093 186368 189696 189924 193648 194208 198016 201552 204288 205751 210392 213248 214149 217056 221312 221952 226304 226576 230622 235144 238336 240448 243712 244608 248064 252928 253232 258944 259896 263568 268736 269059 272384 279552 285532 289408 290472 295936 297024 301056 307496 315588 319872 326144 330752 331968 339456 339864 346528 351424 352716 357504 360672 365568 368186 379392 379848 387296 388416 396032 403104 408576 411502 420784 426496 428298 434112 442624 443904 452608 453152 461244 470288 476672 480896 489216 496128 499681 505856 506464 517888 519792 527136 537472 538118 552279 559104 571064 578816 580944 591872 594048 614992 617253 631176 639744 652288 661504 663936 678912 679728 693056 702848 705432 715008 721344 731136 736372 758784 759696 774592 776832 792064 806208 807177 817152 823004 841568 852992 856596 868224 885248 887808 906304 922488 940576 953344 961792 978432 992256 999362 1012928 1035776 1039584 1054272 1074944 1076236 1104558 1142128 1157632 1161888 1188096 1229984 1234506 1262352 1279488 1304576 1327872 1357824 1359456 1386112 1405696 1410864 1430016 1442688 1472744 1499043 1517568 1519392 1549184 1553664 1584128 1612416 1614354 1646008 1683136 1705984 1713192 1736448 1770496 1775616 1812608 1844976 1881152 1906688 1923584 1956864 1984512 1998724 2025856 2071552 2079168 2108544 2149888 2152472 2209116 2284256 2315264 2323776 2376192 2459968 2469012 2524704 2558976 2655744 2718912 2772224 2811392 2821728 2860032 2885376 2945488 2998086 3038784 3098368 3107328 3168256 3224832 3228708 3292016 3366272 3426384 3472896 3497767 3540992 3625216 3689952 3762304 3847168 3913728 3997448 4051712 4143104 4158336 4217088 4299776 4304944 4418232 4568512 4630528 4647552 4752384 4919936 4938024 5049408 5117952 5311488 5437824 5544448 5622784 5643456 5720064 5770752 5890976 5996172 6077568 6196736 6214656 6449664 6457416 6584032 6732544 6852768 6945792 6995534 7250432 7379904 7524608 7694336 7994896 8103424 8316672 8434176 8599552 8609888 8836464 9137024 9295104 9504768 9839872 9876048 10098816 10493301 10622976 10875648 11088896 11245568 11286912 11541504 11781952 11992344 12155136 12393472 12429312 12899328 12914832 13168064 13465088 13705536 13891584 13991068 14500864 14759808 15049216 15989792 16206848 16633344 16868352 17219776 17672928 18274048 18590208 19679744 19752096 20197632 20986602 21751296 22177792 22573824 23083008 23563904 23984688 24310272 24786944 25798656 25829664 26336128 26930176 27411072 27982136 29001728 29519616 30098432 31979584 32413696 33266688 33736704 34439552 35345856 36548096 37180416 39359488 39504192 40395264 41973204 43502592 45147648 47127808 47969376 48620544 51659328 52672256 53860352 54822144 55964272 59039232 60196864 63959168 66533376 68879104 70691712 73096192 74360832 78718976 79008384 80790528 83946408 87005184 90295296 94255616 95938752 97241088 103318656 105344512 109644288 111928544 118078464 127918336 137758208 141383424 146192384 158016768 161581056 167892816 180590592 188511232 191877504 206637312 210689024 219288576 223857088 236156928 255836672 275516416 282766848 316033536 335785632 377022464 383755008 413274624 421378048 438577152 447714176 511673344 551032832 565533696 632067072 671571264 767510016 826549248 895428352 1023346688 1131067392 1264134144 1343142528 1535020032 1653098496 1790856704 2686285056 3070040064 3581713408 5372570112 7163426816 10745140224 21490280448
• Sum of all divisors σ(n): 80257413600
• Sum of proper divisors (its aliquot sum) s(n): 58767133152
• 21490280448 is an abundant number, because the sum of its proper divisors (58767133152) is greater than itself. Its abundance is 37276852704

Bases of 21490280448

• Binary: 10100000000111010111010100000000000₂
• Hexadecimal: 0x500EBA800
• Base-36: 9VERAIO

Squares and roots of 21490280448

• 21490280448 squared (21490280448²) is 461832153733691080704
• 21490280448 cubed (21490280448³) is 9924902503640871630525161275392
• The square root of 21490280448 is 146595.6358422719
• The cube root of 21490280448 is 2780.2298020961

Scales and comparisons

• 21,490,280,448 seconds is equal to 683 years, 16 weeks, 6 days, 2 hours, 20 minutes, 48 seconds.
• To count from 1 to 21,490,280,448 would take you about one thousand, three hundred sixty-six 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 21490280448 cubic inches would be around 231.7 feet tall.

Recreational maths with 21490280448

• 21490280448 backwards is 84408209412
• 21490280448 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21490280448's digits is 42
• More coming soon!