21328771744

Names of 21328771744

• Cardinal: 21328771744 can be written as Twenty-one billion, three hundred twenty-eight million, seven hundred seventy-one thousand, seven hundred forty-four.

Scientific notation

• Scientific notation: 2.1328771744 × 10¹⁰

Factors of 21328771744

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 934

Divisors of 21328771744

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 7 8 14 16 17 28 32 34 49 56 68 98 112 119 136 151 196 224 238 272 302 343 392 476 544 604 686 757 784 833 952 1057 1208 1372 1514 1568 1666 1904 2114 2416 2567 2744 3028 3332 3808 4228 4832 5134 5299 5488 5831 6056 6664 7399 8456 10268 10598 10976 11662 12112 12869 13328 14798 16912 17969 20536 21196 23324 24224 25738 26656 29596 33824 35938 37093 41072 42392 46648 51476 51793 59192 71876 74186 82144 84784 90083 93296 102952 103586 114307 118384 125783 143752 148372 169568 180166 186592 205904 207172 228614 236768 251566 259651 287504 296744 360332 411808 414344 457228 503132 519302 575008 593488 630581 720664 800149 828688 880481 914456 1006264 1038604 1186976 1261162 1441328 1600298 1657376 1760962 1828912 1943219 2012528 2077208 2522324 2882656 3200596 3521924 3657824 3886438 4025056 4154416 4414067 5044648 5601043 6401192 7043848 7772876 8308832 8828134 10089296 11202086 12802384 13602533 14087696 15545752 17656268 20178592 22404172 25604768 27205066 28175392 31091504 35312536 39207301 44808344 54410132 62183008 70625072 78414602 89616688 95217731 108820264 141250144 156829204 179233376 190435462 217640528 313658408 380870924 435281056 627316816 666524117 761741848 1254633632 1333048234 1523483696 2666096468 3046967392 5332192936 10664385872 21328771744
• Sum of all divisors σ(n): 52261977600
• Sum of proper divisors (its aliquot sum) s(n): 30933205856
• 21328771744 is an abundant number, because the sum of its proper divisors (30933205856) is greater than itself. Its abundance is 9604434112

Bases of 21328771744

• Binary: 10011110111010010110011101010100000₂
• Hexadecimal: 0x4F74B3AA0
• Base-36: 9SQLLLS

Squares and roots of 21328771744

• 21328771744 squared (21328771744²) is 454916504107652801536
• 21328771744 cubed (21328771744³) is 9702810278690565007563476598784
• The square root of 21328771744 is 146043.7322996095
• The cube root of 21328771744 is 2773.2474064745

Scales and comparisons

• 21,328,771,744 seconds is equal to 678 years, 9 weeks, 5 days, 18 hours, 49 minutes, 4 seconds.
• To count from 1 to 21,328,771,744 would take you about one thousand, three hundred fifty-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 21328771744 cubic inches would be around 231.1 feet tall.

Recreational maths with 21328771744

• 21328771744 backwards is 44717782312
• The number of decimal digits it has is: 11
• The sum of 21328771744's digits is 46
• More coming soon!