21491505018968348

Names of 21491505018968348

• Cardinal: 21491505018968348 can be written as Twenty-one quadrillion, four hundred ninety-one trillion, five hundred five billion, eighteen million, nine hundred sixty-eight thousand, three hundred forty-eight.

Scientific notation

• Scientific notation: 2.1491505018968348 × 10¹⁶

Factors of 21491505018968348

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3267

Divisors of 21491505018968348

• Number of divisors d(n): 486
• Complete list of divisors:
  1 2 4 7 13 14 23 26 28 46 49 52 53 91 92 98 106 161 169 182 196 212 299 322 338 364 371 598 637 644 676 689 742 1127 1183 1196 1219 1274 1378 1484 2093 2254 2366 2438 2548 2597 2756 2809 3169 3887 4186 4508 4732 4823 4876 5194 5618 6338 7774 8281 8372 8533 8957 9646 10388 11236 12676 14651 15548 15847 16562 17066 17914 19292 19663 22183 27209 29302 31694 33124 33761 34132 35828 36517 39326 41197 44366 54418 58604 59731 62699 63388 64607 67522 72887 73034 78652 82394 88732 108836 110929 119462 125398 129214 135044 137641 145774 146068 155281 164788 167957 190463 206011 221858 238924 250796 255619 258428 275282 288379 291548 310562 335914 380926 412022 438893 443716 452249 474721 510209 511238 535561 550564 576758 621124 671828 761852 776503 824044 839891 877786 904498 947531 949442 1020418 1022476 1071122 1153516 1175699 1442077 1553006 1679782 1755572 1789333 1808996 1895062 1898884 2018653 2040836 2142244 2183441 2351398 2884154 3106012 3165743 3323047 3359564 3571463 3578666 3748927 3790124 3863011 4037306 4366882 4702796 5768308 5879237 6331486 6632717 6646094 7142926 7157332 7497854 7726022 8074612 8229893 8733764 8901721 10042561 10094539 10918583 11758474 12317903 12662972 13265434 13292188 14285852 14995708 15284087 15452044 16459786 17803442 20085122 20189078 21837166 23261329 23516948 24635806 26242489 26530868 27041077 28384733 30568174 32919572 35606884 40170244 40378156 41154659 43674332 46429019 46522658 49271612 50219143 52484978 54082154 56769466 61136348 62312047 70297927 76430081 82309318 86225321 92858038 93045316 100438286 104969956 106988609 108164308 113538932 115722373 124624094 130553293 140595854 152860162 164618636 172450642 185716076 189287539 198693131 200876572 204739583 213977218 230978903 231444746 249248188 261106586 281191708 305720324 344901284 351534001 378575078 397386262 409479166 427954436 436184329 461957806 462889492 492085489 522213172 532255733 535010567 603577247 652848859 703068002 757150156 794772524 810056611 818958332 872368658 913873051 923915612 984170978 1064511466 1070021134 1207154494 1305697718 1390851917 1406136004 1433177081 1504390849 1616852321 1620113222 1697192809 1744737316 1827746102 1968341956 2129022932 2140042268 2414308988 2460738007 2611395436 2661614579 2781703834 2866354162 3002725739 3008781698 3233704642 3240226444 3394385618 3655492204 3725790131 4569942013 4921476014 5323229158 5563407668 5670396277 5732708324 6005451478 6017563396 6397111357 6467409284 6788771236 6919324529 7451580262 9139884026 9842952028 10032239567 10530735943 10646458316 11317966247 11340792554 11880349663 12010902956 12241881859 12794222714 13838649058 14903160524 18279768052 18631302053 20064479134 21019080173 21061471886 22635932494 22681585108 23760699326 24483763718 25588445428 26080530917 27677298116 28209553849 31989594091 34600989527 37262604106 39035434607 40128958268 42038160346 42122943772 45271864988 47521398652 48435271703 48967527436 52161061834 56419107698 63979188182 69201979054 73715151601 74525208212 78070869214 83162447641 84076320692 85693173013 89951218877 96870543406 104322123668 112838215396 127958376364 130419114371 138403958108 147133561211 147430303202 156141738428 159144464167 166324895282 171386346026 179902437754 193741086812 197466876943 242206926689 260838228742 273248042249 294267122422 294860606404 318288928334 332649790564 339046901921 342772692052 359804875508 366724200037 394933753886 484413853378 521676457484 546496084498 588534244844 599852211091 629658532139 636577856668 648819738527 678093803842 733448400074 789867507772 968827706756 1092992168996 1114011249169 1199704422182 1259317064278 1297639477054 1356187607684 1382268138601 1466896800148 1695448486823 1912736295743 2068878034171 2228022498338 2399408844364 2518634128556 2567069400259 2595278954108 2764536277202 3390896973646 3825472591486 4137756068342 4407609724973 4456044996676 4541738169689 4767414600481 5134138800518 5529072554404 6781793947292 7650945182972 7798078744183 8275512136684 8434656600851 8815219449946 9083476339378 9534829200962 10268277601036 14482146239197 15596157488366 16869313201702 17630438899892 17969485801813 18166952678756 19069658401924 28964292478394 31192314976732 31792167187823 33371902203367 33738626403404 35938971603626 57928584956788 59042596205957 63584334375646 66743804406734 71877943207252 101375023674379 109650535811063 118085192411914 127168668751292 133487608813468 202750047348758 219301071622126 233603315423569 236170384823828 405500094697516 413298173441699 438602143244252 467206630847138 767553750677441 826596346883398 934413261694276 1535107501354882 1653192693766796 3070215002709764 5372876254742087 10745752509484174 21491505018968348
• Sum of all divisors σ(n): 50400880057020024
• Sum of proper divisors (its aliquot sum) s(n): 28909375038051676
• 21491505018968348 is an abundant number, because the sum of its proper divisors (28909375038051676) is greater than itself. Its abundance is 7417870019083328

Bases of 21491505018968348

• Binary: 1001100010110100110100011110010010110000001100100011100₂
• Hexadecimal: 0x4C5A68F258191C
• Base-36: 5VM3P3U2SYK

Squares and roots of 21491505018968348

• 21491505018968348 squared (21491505018968348²) is 461884787980341692127278225849104
• 21491505018968348 cubed (21491505018968348³) is 9926599239064644772379199002406221542248400160192
• The square root of 21491505018968348 is 146599812.4793082673
• The cube root of 21491505018968348 is 278028.2609287243

Scales and comparisons

• 21,491,505,018,968,348 seconds is equal to 683,363,382 years, 4 days, 20 hours, 59 minutes, 8 seconds.
• To count from 1 to 21,491,505,018,968,348 would take you about two billion, fifty million, ninety thousand, one hundred forty-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 21491505018968348 cubic inches would be around 23169 feet tall.

Recreational maths with 21491505018968348

• 21491505018968348 backwards is 84386981050519412
• The number of decimal digits it has is: 17
• The sum of 21491505018968348's digits is 74
• More coming soon!