21508390848

Names of 21508390848

• Cardinal: 21508390848 can be written as Twenty-one billion, five hundred eight million, three hundred ninety thousand, eight hundred forty-eight.

Scientific notation

• Scientific notation: 2.1508390848 × 10¹⁰

Factors of 21508390848

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 807

Divisors of 21508390848

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 43 48 49 56 64 79 84 86 96 98 112 129 147 158 168 172 192 196 224 237 258 294 301 316 336 344 392 448 474 516 553 588 602 632 672 673 688 784 903 948 1032 1106 1176 1204 1264 1344 1346 1376 1568 1659 1806 1896 2019 2064 2107 2212 2352 2408 2528 2692 2752 3136 3318 3397 3612 3792 3871 4038 4128 4214 4424 4704 4711 4816 5056 5384 6321 6636 6794 7224 7584 7742 8076 8256 8428 8848 9408 9422 9632 10191 10768 11613 12642 13272 13588 14133 14448 15168 15484 16152 16856 17696 18844 19264 20382 21536 23226 23779 25284 26544 27176 28266 28896 28939 30968 32304 32977 33712 35392 37688 40764 43072 46452 47558 50568 53088 53167 54352 56532 57792 57878 61936 64608 65954 67424 71337 75376 81528 86817 92904 95116 98931 101136 106176 106334 108704 113064 115756 123872 129216 131908 134848 142674 150752 159501 163056 166453 173634 185808 190232 197862 202272 202573 212668 217408 226128 231512 247744 263816 285348 301504 319002 326112 332906 347268 371616 372169 380464 395724 404544 405146 425336 452256 463024 499359 527632 570696 607719 638004 652224 665812 694536 743232 744338 760928 791448 810292 850672 904512 926048 998718 1055264 1116507 1141392 1215438 1276008 1331624 1389072 1418011 1488676 1521856 1582896 1620584 1701344 1852096 1997436 2110528 2233014 2282784 2286181 2430876 2552016 2605183 2663248 2778144 2836022 2977352 3165792 3241168 3402688 3994872 4254033 4466028 4565568 4572362 4861752 5104032 5210366 5326496 5556288 5672044 5954704 6331584 6482336 6858543 7815549 7989744 8508066 8932056 9144724 9723504 10208064 10420732 10652992 11344088 11909408 12964672 13717086 15631098 15979488 16003267 17016132 17864112 18289448 19447008 20841464 22688176 23818816 27434172 31262196 31958976 32006534 34032264 35728224 36578896 38894016 41682928 45376352 48009801 54868344 62524392 64013068 68064528 71456448 73157792 83365856 90752704 96019602 109736688 112022869 125048784 128026136 136129056 146315584 166731712 192039204 219473376 224045738 250097568 256052272 272258112 336068607 384078408 438946752 448091476 500195136 512104544 672137214 768156816 896182952 1024209088 1344274428 1536313632 1792365904 2688548856 3072627264 3584731808 5377097712 7169463616 10754195424 21508390848
• Sum of all divisors σ(n): 68697530880
• Sum of proper divisors (its aliquot sum) s(n): 47189140032
• 21508390848 is an abundant number, because the sum of its proper divisors (47189140032) is greater than itself. Its abundance is 25680749184

Bases of 21508390848

• Binary: 10100000001111111111111111111000000₂
• Hexadecimal: 0x501FFFFC0
• Base-36: 9VPJGLC

Squares and roots of 21508390848

• 21508390848 squared (21508390848²) is 462610876870330159104
• 21508390848 cubed (21508390848³) is 9950015550263064076810857480192
• The square root of 21508390848 is 146657.3927492235
• The cube root of 21508390848 is 2781.0105726791

Scales and comparisons

• 21,508,390,848 seconds is equal to 683 years, 46 weeks, 5 days, 17 hours, 48 seconds.
• To count from 1 to 21,508,390,848 would take you about one thousand, three hundred sixty-seven 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 21508390848 cubic inches would be around 231.8 feet tall.

Recreational maths with 21508390848

• 21508390848 backwards is 84809380512
• 21508390848 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21508390848's digits is 48
• More coming soon!