21689862642

Names of 21689862642

• Cardinal: 21689862642 can be written as Twenty-one billion, six hundred eighty-nine million, eight hundred sixty-two thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 2.1689862642 × 10¹⁰

Factors of 21689862642

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 60

Divisors of 21689862642

• Number of divisors d(n): 378
• Complete list of divisors:
  1 2 3 6 7 9 14 18 19 21 27 29 38 42 49 54 57 58 63 81 87 98 114 126 133 147 162 171 174 189 203 243 261 266 294 342 361 378 399 406 441 486 513 522 551 567 609 722 729 783 798 841 882 931 1026 1083 1102 1134 1197 1218 1323 1421 1458 1539 1566 1653 1682 1701 1827 1862 2166 2349 2394 2523 2527 2646 2793 2842 3078 3249 3306 3402 3591 3654 3857 3969 4263 4617 4698 4959 5046 5054 5103 5481 5586 5887 6498 7047 7182 7569 7581 7714 7938 8379 8526 9234 9747 9918 10206 10469 10773 10962 11571 11774 11907 12789 13851 14094 14877 15138 15162 15979 16443 16758 17661 17689 19494 20938 21141 21546 22707 22743 23142 23814 25137 25578 26999 27702 29241 29754 31407 31958 32319 32886 34713 35322 35378 35721 38367 41209 42282 44631 45414 45486 47937 49329 50274 52983 53067 53998 58482 62814 64638 68121 68229 69426 71442 73283 75411 76734 80997 82418 87723 89262 94221 95874 96957 98658 104139 105966 106134 111853 115101 123627 133893 136242 136458 143811 146566 147987 150822 158949 159201 161994 175446 188442 193914 204363 204687 208278 219849 223706 226233 230202 242991 247254 263169 267786 282663 287622 295974 303601 312417 317898 318402 335559 345303 370881 401679 408726 409374 431433 439698 452466 476847 477603 485982 512981 526338 565326 607202 613089 614061 624834 659547 671118 678699 690606 728973 741762 782971 803358 847989 862866 910803 937251 953694 955206 1006677 1025962 1035909 1112643 1226178 1228122 1294299 1319094 1357398 1430541 1432809 1457946 1538943 1565942 1695978 1821606 1842183 1874502 1978641 2013354 2071818 2125207 2186919 2225286 2348913 2543967 2588598 2732409 2811753 2861082 2865618 3020031 3077886 3337929 3684366 3882897 3957282 4250414 4291623 4298427 4373838 4616829 4697826 5087934 5464818 5623506 5935923 6040062 6375621 6560757 6675858 7046739 7631901 7765794 8197227 8583246 8596854 9060093 9233658 10013787 11648691 11871846 12751242 12895281 13121514 13850487 14093478 14876449 15263802 16394454 17807769 18120186 19126863 19682271 20027574 21140217 23297382 24591681 25790562 27180279 27700974 29752898 30041361 35615538 38253726 39364542 41551461 42280434 44629347 49183362 53423307 54360558 57380589 60082722 63420651 73775043 81540837 83102922 89258694 106846614 114761178 124654383 126841302 133888041 147550086 163081674 172141767 190261953 221325129 249308766 267776082 344283534 373963149 380523906 401664123 442650258 516425301 570785859 747926298 803328246 1032850602 1141571718 1204992369 1549275903 2409984738 3098551806 3614977107 7229954214 10844931321 21689862642
• Sum of all divisors σ(n): 62023947453
• Sum of proper divisors (its aliquot sum) s(n): 40334084811
• 21689862642 is an abundant number, because the sum of its proper divisors (40334084811) is greater than itself. Its abundance is 18644222169

Bases of 21689862642

• Binary: 10100001100110100010000100111110010₂
• Hexadecimal: 0x50CD109F2
• Base-36: 9YPL14I

Squares and roots of 21689862642

• 21689862642 squared (21689862642²) is 470450141428827220164
• 21689862642 cubed (21689862642³) is 10203998947500736024507852713288
• The square root of 21689862642 is 147274.7861719717
• The cube root of 21689862642 is 2788.8100440559

Scales and comparisons

• 21,689,862,642 seconds is equal to 689 years, 34 weeks, 6 days, 1 hour, 50 minutes, 42 seconds.
• To count from 1 to 21,689,862,642 would take you about one thousand, three hundred seventy-nine 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 21689862642 cubic inches would be around 232.4 feet tall.

Recreational maths with 21689862642

• 21689862642 backwards is 24626898612
• 21689862642 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21689862642's digits is 54
• More coming soon!