21493649376

Names of 21493649376

• Cardinal: 21493649376 can be written as Twenty-one billion, four hundred ninety-three million, six hundred forty-nine thousand, three hundred seventy-six.

Scientific notation

• Scientific notation: 2.1493649376 × 10¹⁰

Factors of 21493649376

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 778

Divisors of 21493649376

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 71 72 76 81 96 108 114 142 144 152 162 171 213 216 228 243 284 288 304 324 342 426 432 456 486 513 568 608 639 648 683 684 729 852 864 912 972 1026 1136 1278 1296 1349 1366 1368 1458 1539 1704 1824 1917 1944 2049 2052 2272 2556 2592 2698 2732 2736 2916 3078 3408 3834 3888 4047 4098 4104 4617 5112 5396 5464 5472 5751 5832 6147 6156 6816 7668 7776 8094 8196 8208 9234 10224 10792 10928 11502 11664 12141 12294 12312 12977 13851 15336 16188 16392 16416 17253 18441 18468 20448 21584 21856 23004 23328 24282 24588 24624 25954 27702 30672 32376 32784 34506 36423 36882 36936 38931 43168 46008 48493 48564 49176 49248 51759 51908 55323 55404 61344 64752 65568 69012 72846 73764 73872 77862 92016 96986 97128 98352 103518 103816 109269 110646 110808 116793 129504 138024 145479 145692 147528 147744 155724 165969 184032 193972 194256 196704 207036 207632 218538 221292 221616 233586 276048 290958 291384 295056 311448 327807 331938 350379 387944 388512 414072 415264 436437 437076 442584 443232 467172 497907 552096 581916 582768 590112 622896 655614 663876 700758 775888 828144 872874 874152 885168 921367 934344 983421 995814 1051137 1163832 1165536 1245792 1309311 1311228 1327752 1401516 1551776 1656288 1745748 1748304 1770336 1842734 1868688 1966842 1991628 2102274 2327664 2618622 2622456 2655504 2764101 2803032 3153411 3491496 3496608 3685468 3737376 3927933 3933684 3983256 4204548 4655328 5237244 5244912 5311008 5528202 5606064 6306822 6982992 7370936 7855866 7867368 7966512 8292303 8409096 9460233 10474488 10489824 11056404 11212128 11783799 12613644 13965984 14741872 15711732 15734736 15933024 16584606 16818192 18920466 20948976 22112808 23567598 24876909 25227288 29483744 31423464 31469472 33169212 33636384 35351397 37840932 41897952 44225616 47135196 49753818 50454576 62846928 66338424 70702794 74630727 75681864 88451232 94270392 99507636 100909152 125693856 132676848 141405588 149261454 151363728 188540784 199015272 223892181 265353696 282811176 298522908 302727456 377081568 398030544 447784362 565622352 597045816 671676543 796061088 895568724 1131244704 1194091632 1343353086 1791137448 2388183264 2686706172 3582274896 5373412344 7164549792 10746824688 21493649376
• Sum of all divisors σ(n): 67823360640
• Sum of proper divisors (its aliquot sum) s(n): 46329711264
• 21493649376 is an abundant number, because the sum of its proper divisors (46329711264) is greater than itself. Its abundance is 24836061888

Bases of 21493649376

• Binary: 10100000001000111110000111111100000₂
• Hexadecimal: 0x5011F0FE0
• Base-36: 9VGRI00

Squares and roots of 21493649376

• 21493649376 squared (21493649376²) is 461976963498425189376
• 21493649376 cubed (21493649376³) is 9929570873224301348614144229376
• The square root of 21493649376 is 146607.1259386801
• The cube root of 21493649376 is 2780.3750755939

Scales and comparisons

• 21,493,649,376 seconds is equal to 683 years, 22 weeks, 3 days, 2 hours, 9 minutes, 36 seconds.
• To count from 1 to 21,493,649,376 would take you about one thousand, three hundred sixty-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 21493649376 cubic inches would be around 231.7 feet tall.

Recreational maths with 21493649376

• 21493649376 backwards is 67394639412
• 21493649376 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21493649376's digits is 54
• More coming soon!