21478137860426328

Names of 21478137860426328

• Cardinal: 21478137860426328 can be written as Twenty-one quadrillion, four hundred seventy-eight trillion, one hundred thirty-seven billion, eight hundred sixty million, four hundred twenty-six thousand, three hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1478137860426328 × 10¹⁶

Factors of 21478137860426328

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 16564

Divisors of 21478137860426328

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 41 72 82 123 149 164 246 298 328 369 447 492 596 738 809 894 984 1192 1341 1476 1618 1788 2427 2682 2952 3236 3576 4854 5364 6109 6472 7281 7369 8191 9708 10728 12218 14562 14738 16382 18327 19416 22107 24436 24573 29124 29476 32764 33169 36654 44214 48872 49146 54981 58248 58952 65528 66321 66338 73308 73719 88428 98292 99507 109962 120541 132642 132676 146616 147438 176856 196584 199014 219924 241082 265284 265352 294876 298521 302129 335831 361623 398028 439848 482164 530568 589752 597042 604258 671662 723246 796056 906387 964328 1007493 1084869 1097981 1194084 1208516 1220459 1343324 1446492 1812774 2014986 2169738 2195962 2388168 2417032 2440918 2686648 2719161 2892984 3022479 3293943 3625548 3661377 4029972 4339476 4391924 4881836 4942181 5438322 5961521 6044958 6587886 6626519 7251096 7322754 8059944 8678952 8783848 9763672 9881829 9884362 10876644 10984131 11923042 12089916 13175772 13253038 14645508 14826543 17884563 19763658 19768724 19879557 21753288 21968262 23846084 24179832 26351544 26506076 29291016 29653086 35769126 39527316 39537448 39759114 43936524 44479629 45017221 47692168 50038819 53012152 53653689 59306172 59638671 60359479 71538252 79054632 79518228 87873048 88959258 90034442 100077638 107307378 118612344 119277342 120718958 135051663 143076504 150116457 159036456 177918516 180068884 181078437 200155276 214614756 238554684 241437916 244422361 270103326 271687279 300232914 355837032 360137768 362156874 400310552 405154989 429229512 450349371 477109368 482875832 488844722 540206652 543235311 543374558 600465828 724313748 733267083 810309978 815061837 888266629 900698742 977689444 987351331 1080413304 1086470622 1086749116 1200931656 1448627496 1466534166 1620619956 1630123674 1776533258 1801397484 1955378888 1974702662 2172941244 2173498232 2199801249 2445185511 2474738639 2664799887 2933068332 2962053993 3241239912 3260247348 3553066516 3602794968 3949405324 4345882488 4399602498 4890371022 4949477278 5329599774 5866136664 5924107986 6520494696 7106133032 7424215917 7898810648 7994399661 8799204996 8886161979 8993562371 9780742044 9898954556 10659199548 11848215972 14848431834 15988799322 17598409992 17772323958 17987124742 19561484088 19797909112 21318399096 22272647751 23696431944 26980687113 29696863668 31977598644 35544647916 35974249484 36418931789 40481404571 44545295502 48830818511 53961374226 59393727336 63955197288 71089295832 71948498968 72837863578 80942061339 80962809142 89090591004 97661637022 107922748452 109256795367 121444213713 145675727156 146492455533 161884122678 161925618284 178181182008 195323274044 215845496904 218513590734 242888427426 291351454312 292984911066 323768245356 323851236568 327770386101 364332641139 368736057211 390646548088 437027181468 439477366599 485776854852 585969822132 647536490712 655540772202 728665282278 737472114422 874054362936 878954733198 971553709704 1106208171633 1171939644264 1311081544404 1457330564556 1474944228844 1757909466396 2002063558951 2212416343266 2622163088808 2914661129112 2949888457688 3318624514899 3515818932792 4004127117902 4424832686532 6006190676853 6637249029798 7275791958139 8008254235804 8849665373064 12012381353706 13274498059596 14551583916278 16016508471608 18018572030559 21827375874417 24024762707412 26548996119192 29103167832556 36037144061118 43654751748834 48049525414824 58206335665112 65482127623251 72074288122236 87309503497668 130964255246502 144148576244472 174619006995336 261928510493004 298307470283699 523857020986008 596614940567398 894922410851097 1193229881134796 1789844821702194 2386459762269592 2684767232553291 3579689643404388 5369534465106582 7159379286808776 10739068930213164 21478137860426328
• Sum of all divisors σ(n): 60078296678400000
• Sum of proper divisors (its aliquot sum) s(n): 38600158817973672
• 21478137860426328 is an abundant number, because the sum of its proper divisors (38600158817973672) is greater than itself. Its abundance is 17122020957547344

Bases of 21478137860426328

• Binary: 1001100010011100100000010101001100110111000101001011000₂
• Hexadecimal: 0x4C4E40A99B8A58
• Base-36: 5VHD4BH0FA0

Squares and roots of 21478137860426328

• 21478137860426328 squared (21478137860426328²) is 461310405951478842715337915563584
• 21478137860426328 cubed (21478137860426328³) is 9908088495475096597461766559016841330556631639552
• The square root of 21478137860426328 is 146554214.7480799271
• The cube root of 21478137860426328 is 277970.6068522655

Scales and comparisons

• 21,478,137,860,426,328 seconds is equal to 682,938,347 years, 37 weeks, 2 days, 17 hours, 58 minutes, 48 seconds.
• To count from 1 to 21,478,137,860,426,328 would take you about two billion, forty-eight million, eight hundred fifteen thousand and forty-three 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 21478137860426328 cubic inches would be around 23164.2 feet tall.

Recreational maths with 21478137860426328

• 21478137860426328 backwards is 82362406873187412
• 21478137860426328 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21478137860426328's digits is 72
• More coming soon!