21440504438404128

Names of 21440504438404128

• Cardinal: 21440504438404128 can be written as Twenty-one quadrillion, four hundred forty trillion, five hundred four billion, four hundred thirty-eight million, four hundred four thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1440504438404128 × 10¹⁶

Factors of 21440504438404128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 138119102002

Divisors of 21440504438404128

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 32 33 36 42 44 48 49 56 63 66 72 77 84 88 96 98 99 112 126 132 144 147 154 168 176 196 198 224 231 252 264 288 294 308 336 352 392 396 441 462 504 528 539 588 616 672 693 784 792 882 924 1008 1056 1078 1176 1232 1386 1568 1584 1617 1764 1848 2016 2156 2352 2464 2772 3168 3234 3528 3696 4312 4704 4851 5544 6468 7056 7392 8624 9702 11088 12936 14112 17248 19404 22176 25872 38808 51744 77616 155232 138119101979 276238203958 414357305937 552476407916 828714611874 966833713853 1104952815832 1243071917811 1519310121769 1657429223748 1933667427706 2209905631664 2486143835622 2900501141559 3038620243538 3314858447496 3867334855412 4419811263328 4557930365307 4972287671244 5801002283118 6077240487076 6629716894992 6767835996971 7734669710824 8701503424677 9115860730614 9944575342488 10635170852383 11602004566236 12154480974152 13259433789984 13535671993942 13673791095921 15469339421648 17403006849354 18231721461228 19889150684976 20303507990913 21270341704766 23204009132472 24308961948304 27071343987884 27347582191842 30938678843296 31905512557149 34806013698708 36463442922456 39778301369952 40607015981826 42540683409532 46408018264944 48617923896608 54142687975768 54695164383684 60910523972739 63811025114298 69612027397416 72926885844912 74446195966681 81214031963652 85081366819064 92816036529888 95716537671447 108285375951536 109390328767368 121821047945478 127622050228596 139224054794832 145853771689824 148892391933362 162428063927304 170162733638128 191433075342894 216570751903072 218780657534736 223338587900043 243642095890956 255244100457192 278448109589664 297784783866724 324856127854608 340325467276256 382866150685788 437561315069472 446677175800086 487284191781912 510488200914384 595569567733448 649712255709216 670015763700129 765732301371576 893354351600172 974568383563824 1020976401828768 1191139135466896 1340031527400258 1531464602743152 1786708703200344 1949136767127648 2382278270933792 2680063054800516 3062929205486304 3573417406400688 5360126109601032 7146834812801376 10720252219202064 21440504438404128
• Sum of all divisors σ(n): 77373768452788080
• Sum of proper divisors (its aliquot sum) s(n): 55933264014383952
• 21440504438404128 is an abundant number, because the sum of its proper divisors (55933264014383952) is greater than itself. Its abundance is 34492759575979824

Bases of 21440504438404128

• Binary: 1001100001011000000011001110010110110110011010000100000₂
• Hexadecimal: 0x4C2C0672DB3420
• Base-36: 5V40VRH7EW0

Squares and roots of 21440504438404128

• 21440504438404128 squared (21440504438404128²) is 459695230573227112199203447440384
• 21440504438404128 cubed (21440504438404128³) is 9856097631418484897230042581309292583231379505152
• The square root of 21440504438404128 is 146425764.2575381199
• The cube root of 21440504438404128 is 277808.1610356573

Scales and comparisons

• 21,440,504,438,404,128 seconds is equal to 681,741,721 years, 15 weeks, 6 days, 14 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,440,504,438,404,128 would take you about two billion, forty-five million, two hundred twenty-five thousand, one hundred sixty-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 21440504438404128 cubic inches would be around 23150.7 feet tall.

Recreational maths with 21440504438404128

• 21440504438404128 backwards is 82140483440504412
• The number of decimal digits it has is: 17
• The sum of 21440504438404128's digits is 54
• More coming soon!