21601431338856516

Names of 21601431338856516

• Cardinal: 21601431338856516 can be written as Twenty-one quadrillion, six hundred one trillion, four hundred thirty-one billion, three hundred thirty-eight million, eight hundred fifty-six thousand, five hundred sixteen.

Scientific notation

• Scientific notation: 2.1601431338856516 × 10¹⁶

Factors of 21601431338856516

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 57440

Divisors of 21601431338856516

• Number of divisors d(n): 243
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 61 63 84 98 122 126 147 183 196 244 252 294 366 427 441 549 588 732 854 882 1098 1281 1708 1764 2196 2562 2989 3721 3843 5124 5978 7442 7686 8967 11163 11956 14884 15372 17934 22326 26047 26901 33489 35868 44652 52094 53802 57367 66978 78141 104188 107604 114734 133956 156282 172101 182329 229468 234423 312564 344202 364658 401569 468846 516303 546987 688404 729316 803138 937692 1032606 1093974 1204707 1606276 1640961 2065212 2187948 2409414 2810983 3281922 3499387 3614121 4818828 5621966 6563844 6998774 7228242 8432949 10498161 11243932 13997548 14456484 16865898 20996322 24495709 25298847 31494483 33731796 41992644 48991418 50597694 62988966 73487127 97982836 101195388 125977932 146974254 171469963 213462607 220461381 293948508 342939926 426925214 440922762 514409889 640387821 685879852 853850428 881845524 1028819778 1280775642 1494238249 1543229667 1921163463 2057639556 2561551284 2988476498 3086459334 3290972689 3842326926 4482714747 5976952996 6172918668 6581945378 7684653852 8965429494 9872918067 10459667743 13163890756 13448144241 17930858988 19745836134 20919335486 23036808823 26896288482 29618754201 31379003229 39491672268 41838670972 46073617646 53792576964 59237508402 62758006458 69110426469 92147235292 94137009687 118475016804 125516012916 138220852938 161257661761 188274019374 200749334029 207331279407 276441705876 322515323522 376548038748 401498668058 414662558814 483772985283 602248002087 645030647044 802997336116 829325117628 967545970566 1204496004174 1405245338203 1451318955849 1806744006261 1935091941132 2408992008348 2810490676406 2902637911698 3613488012522 4215736014609 5620981352812 5805275823396 7226976025044 8431472029218 9836717367421 12245709375769 12647208043827 16862944058436 19673434734842 24491418751538 25294416087654 29510152102263 36737128127307 39346869469684 48982837503076 50588832175308 59020304204526 73474256254614 85719965630383 88530456306789 110211384381921 118040608409052 146948512509228 171439931260766 177060912613578 220422768763842 257159896891149 342879862521532 354121825227156 440845537527684 514319793782298 600039759412681 771479690673447 1028639587564596 1200079518825362 1542959381346894 1800119278238043 2400159037650724 3085918762693788 3600238556476086 5400357834714129 7200477112952172 10800715669428258 21601431338856516
• Sum of all divisors σ(n): 64577977302107997
• Sum of proper divisors (its aliquot sum) s(n): 42976545963251481
• 21601431338856516 is an abundant number, because the sum of its proper divisors (42976545963251481) is greater than itself. Its abundance is 21375114624394965

Bases of 21601431338856516

• Binary: 1001100101111100110001100101001100101111011000001000100₂
• Hexadecimal: 0x4CBE632997B044
• Base-36: 5WP2GK6Q4P0

Squares and roots of 21601431338856516

• 21601431338856516 squared (21601431338856516²) is 466621835887332413372530435658256
• 21601431338856516 cubed (21601431338856516³) is 10079699549131384499835423630559230095454794796096
• 21601431338856516 is a perfect square number. Its square root is 146974254
• The cube root of 21601431338856516 is 278501.4814424237

Scales and comparisons

• 21,601,431,338,856,516 seconds is equal to 686,858,698 years, 49 weeks, 6 days, 22 hours, 48 minutes, 36 seconds.
• To count from 1 to 21,601,431,338,856,516 would take you about two billion, sixty million, five hundred seventy-six thousand and ninety-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 21601431338856516 cubic inches would be around 23208.5 feet tall.

Recreational maths with 21601431338856516

• 21601431338856516 backwards is 61565883313410612
• 21601431338856516 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21601431338856516's digits is 63
• More coming soon!