21386944512

Names of 21386944512

• Cardinal: 21386944512 can be written as Twenty-one billion, three hundred eighty-six million, nine hundred forty-four thousand, five hundred twelve.

Scientific notation

• Scientific notation: 2.1386944512 × 10¹⁰

Factors of 21386944512

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 365

Divisors of 21386944512

• Number of divisors d(n): 280
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 167 192 193 216 256 288 324 334 384 386 432 501 512 576 579 648 668 768 772 864 1002 1024 1152 1158 1296 1336 1503 1536 1544 1728 1737 2004 2048 2304 2316 2592 2672 3006 3072 3088 3456 3474 4008 4096 4509 4608 4632 5184 5211 5344 6012 6144 6176 6912 6948 8016 8192 9018 9216 9264 10368 10422 10688 12024 12288 12352 13527 13824 13896 15633 16032 18036 18432 18528 20736 20844 21376 24048 24576 24704 27054 27648 27792 31266 32064 32231 36072 36864 37056 41472 41688 42752 48096 49408 54108 55296 55584 62532 64128 64462 72144 73728 74112 82944 83376 85504 96192 96693 98816 108216 110592 111168 125064 128256 128924 144288 148224 165888 166752 171008 192384 193386 197632 216432 221184 222336 250128 256512 257848 288576 290079 296448 331776 333504 342016 384768 386772 395264 432864 444672 500256 513024 515696 577152 580158 592896 663552 667008 684032 769536 773544 790528 865728 870237 889344 1000512 1026048 1031392 1154304 1160316 1185792 1334016 1368064 1539072 1547088 1581056 1731456 1740474 1778688 2001024 2052096 2062784 2308608 2320632 2371584 2610711 2668032 3078144 3094176 3462912 3480948 3557376 4002048 4104192 4125568 4617216 4641264 4743168 5221422 5336064 6156288 6188352 6925824 6961896 7114752 8004096 8251136 9234432 9282528 10442844 10672128 12312576 12376704 13851648 13923792 14229504 16008192 16502272 18468864 18565056 20885688 21344256 24753408 27703296 27847584 32016384 33004544 36937728 37130112 41771376 42688512 49506816 55406592 55695168 64032768 66009088 74260224 83542752 99013632 110813184 111390336 128065536 132018176 148520448 167085504 198027264 222780672 264036352 297040896 334171008 396054528 445561344 594081792 668342016 792109056 891122688 1188163584 1336684032 1782245376 2376327168 2673368064 3564490752 5346736128 7128981504 10693472256 21386944512
• Sum of all divisors σ(n): 64608523056
• Sum of proper divisors (its aliquot sum) s(n): 43221578544
• 21386944512 is an abundant number, because the sum of its proper divisors (43221578544) is greater than itself. Its abundance is 21834634032

Bases of 21386944512

• Binary: 10011111010110000101110000000000000₂
• Hexadecimal: 0x4FAC2E000
• Base-36: 9TP8G00

Squares and roots of 21386944512

• 21386944512 squared (21386944512²) is 457401395559366918144
• 21386944512 cubed (21386944512³) is 9782418266539543480194174025728
• The square root of 21386944512 is 146242.7588361215
• The cube root of 21386944512 is 2775.7663986893

Scales and comparisons

• 21,386,944,512 seconds is equal to 680 years, 2 weeks, 1 hour, 55 minutes, 12 seconds.
• To count from 1 to 21,386,944,512 would take you about one thousand, three hundred sixty 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 21386944512 cubic inches would be around 231.3 feet tall.

Recreational maths with 21386944512

• 21386944512 backwards is 21544968312
• The number of decimal digits it has is: 11
• The sum of 21386944512's digits is 45
• More coming soon!