21709128384

Names of 21709128384

• Cardinal: 21709128384 can be written as Twenty-one billion, seven hundred nine million, one hundred twenty-eight thousand, three hundred eighty-four.

Scientific notation

• Scientific notation: 2.1709128384 × 10¹⁰

Factors of 21709128384

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 822

Divisors of 21709128384

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 27 31 32 34 36 48 51 54 62 64 68 72 93 96 102 108 124 136 144 153 186 192 204 216 248 272 279 288 306 372 408 432 459 496 527 544 558 576 612 744 769 816 837 864 918 961 992 1054 1088 1116 1224 1488 1538 1581 1632 1674 1728 1836 1922 1984 2108 2232 2307 2448 2883 2976 3076 3162 3264 3348 3672 3844 4216 4464 4614 4743 4896 5766 5952 6152 6324 6696 6921 7344 7688 8432 8649 8928 9228 9486 9792 11532 12304 12648 13073 13392 13842 14229 14688 15376 16337 16864 17298 17856 18456 18972 20763 23064 23839 24608 25296 25947 26146 26784 27684 28458 29376 30752 32674 33728 34596 36912 37944 39219 41526 46128 47678 49011 49216 50592 51894 52292 53568 55368 56916 61504 65348 69192 71517 73824 75888 78438 83052 92256 95356 98022 101184 103788 104584 110736 113832 117657 130696 138384 143034 147033 147648 151776 156876 166104 184512 190712 196044 207576 209168 214551 221472 227664 235314 261392 276768 286068 294066 303552 313752 332208 352971 381424 392088 405263 415152 418336 429102 441099 442944 455328 470628 522784 553536 572136 588132 627504 643653 664416 705942 739009 762848 784176 810526 830304 836672 858204 882198 910656 941256 1045568 1144272 1176264 1215789 1255008 1287306 1328832 1411884 1478018 1525696 1568352 1621052 1660608 1716408 1764396 1882512 2217027 2288544 2352528 2431578 2510016 2574612 2823768 2956036 3136704 3242104 3432816 3528792 3647367 3765024 4434054 4577088 4705056 4863156 5149224 5647536 5912072 6484208 6651081 6865632 7057584 7294734 7530048 8868108 9410112 9726312 10298448 10942101 11295072 11824144 12563153 12968416 13302162 13731264 14115168 14589468 17736216 19452624 19953243 20596896 21884202 22590144 23648288 25126306 25936832 26604324 28230336 29178936 35472432 37689459 38905248 39906486 41193792 43768404 47296576 50252612 53208648 58357872 70944864 75378918 77810496 79812972 87536808 100505224 106417296 113068377 116715744 141889728 150757836 159625944 175073616 201010448 212834592 226136754 233431488 301515672 319251888 339205131 350147232 402020896 425669184 452273508 603031344 638503776 678410262 700294464 804041792 904547016 1206062688 1277007552 1356820524 1809094032 2412125376 2713641048 3618188064 5427282096 7236376128 10854564192 21709128384
• Sum of all divisors σ(n): 69915938400
• Sum of proper divisors (its aliquot sum) s(n): 48206810016
• 21709128384 is an abundant number, because the sum of its proper divisors (48206810016) is greater than itself. Its abundance is 26497681632

Bases of 21709128384

• Binary: 10100001101111101110000001011000000₂
• Hexadecimal: 0x50DF702C0
• Base-36: 9Z11YO0

Squares and roots of 21709128384

• 21709128384 squared (21709128384²) is 471286255192994451456
• 21709128384 cubed (21709128384³) is 10231213819599303244057959727104
• The square root of 21709128384 is 147340.1791230077
• The cube root of 21709128384 is 2789.6355079397

Scales and comparisons

• 21,709,128,384 seconds is equal to 690 years, 14 weeks, 5 days, 1 hour, 26 minutes, 24 seconds.
• To count from 1 to 21,709,128,384 would take you about one thousand, three hundred eighty 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 21709128384 cubic inches would be around 232.5 feet tall.

Recreational maths with 21709128384

• 21709128384 backwards is 48382190712
• The number of decimal digits it has is: 11
• The sum of 21709128384's digits is 45
• More coming soon!