21361664016
21,361,664,016 is an even composite number composed of seven prime numbers multiplied together.
21361664016 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21361664016:
24 × 32 × 7 × 11 × 29 × 31 × 2143
(2 × 2 × 2 × 2 × 3 × 3 × 7 × 11 × 29 × 31 × 2143)See below for interesting mathematical facts about the number 21361664016 from the Numbermatics database.
Names of 21361664016
- Cardinal: 21361664016 can be written as Twenty-one billion, three hundred sixty-one million, six hundred sixty-four thousand and sixteen.
Scientific notation
- Scientific notation: 2.1361664016 × 1010
Factors of 21361664016
Divisors of 21361664016
- Number of divisors d(n): 480
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Complete list of divisors:
1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 29 31 33 36 42 44 48 56 58 62 63 66 72 77 84 87 88 93 99 112 116 124 126 132 144 154 168 174 176 186 198 203 217 231 232 248 252 261 264 279 308 319 336 341 348 372 396 406 434 462 464 496 504 522 528 558 609 616 638 651 682 693 696 744 792 812 868 899 924 957 1008 1023 1044 1116 1218 1232 1276 1302 1364 1386 1392 1488 1584 1624 1736 1798 1827 1848 1914 1953 2046 2088 2143 2232 2233 2387 2436 2552 2604 2697 2728 2772 2871 3069 3248 3472 3596 3654 3696 3828 3906 4092 4176 4286 4464 4466 4774 4872 5104 5208 5394 5456 5544 5742 6138 6293 6429 6699 7161 7192 7308 7656 7812 8091 8184 8572 8932 9548 9744 9889 10416 10788 11088 11484 12276 12586 12858 13398 14322 14384 14616 15001 15312 15624 16182 16368 17144 17864 18879 19096 19287 19778 20097 21483 21576 22968 23573 24552 25172 25716 26796 28644 29232 29667 30002 31248 32364 34288 35728 37758 38192 38574 39556 40194 42966 43152 45003 45936 47146 49104 50344 51432 53592 56637 57288 59334 60004 62147 64728 66433 69223 70719 75516 77148 79112 80388 85932 89001 90006 94292 100688 102864 107184 113274 114576 118668 120008 124294 129456 132866 135009 138446 141438 151032 154296 158224 160776 165011 171864 178002 180012 186441 188584 199299 207669 212157 226548 237336 240016 248588 265732 270018 276892 282876 302064 308592 321552 330022 343728 356004 360024 372882 377168 398598 415338 424314 435029 453096 465031 474672 495033 497176 531464 540036 553784 559323 565752 597897 623007 660044 683617 712008 720048 730763 745764 797196 830676 848628 870058 906192 930062 990066 994352 1062928 1080072 1107568 1118646 1131504 1195794 1246014 1305087 1320088 1367234 1395093 1424016 1461526 1485099 1491528 1594392 1661352 1697256 1740116 1860124 1926557 1980132 2050851 2160144 2192289 2237292 2391588 2492028 2610174 2640176 2734468 2790186 2923052 2970198 2983056 3188784 3322704 3394512 3480232 3720248 3853114 3915261 3960264 4101702 4185279 4384578 4474584 4783176 4785319 4984056 5115341 5220348 5468936 5580372 5779671 5846104 5940396 6152553 6576867 6960464 7440496 7706228 7830522 7920528 8203404 8370558 8769156 8949168 9566352 9570638 9968112 10230682 10440696 10937872 11160744 11559342 11692208 11880792 12305106 13153734 13485899 14355957 15346023 15412456 15661044 16406808 16741116 17339013 17538312 19141276 20461364 20881392 21192127 22321488 23118684 23761584 24610212 26307468 26971798 28711914 30692046 30824912 31322088 32813616 33482232 34678026 35076624 38282552 40457697 40922728 42384254 43067871 46038069 46237368 49220424 52614936 53943596 57423828 61384092 62644176 63576381 66964464 69356052 76565104 80915394 81845456 84768508 86135742 92076138 92474736 98440848 105229872 107887192 114847656 121373091 122768184 127152762 138712104 148344889 161830788 169537016 172271484 184152276 190729143 215774384 229695312 242746182 245536368 254305524 277424208 296689778 323661576 339074032 344542968 368304552 381458286 445034667 485492364 508611048 593379556 647323152 689085936 736609104 762916572 890069334 970984728 1017222096 1186759112 1335104001 1525833144 1780138668 1941969456 2373518224 2670208002 3051666288 3560277336 5340416004 7120554672 10680832008 21361664016
- Sum of all divisors σ(n): 79629189120
- Sum of proper divisors (its aliquot sum) s(n): 58267525104
- 21361664016 is an abundant number, because the sum of its proper divisors (58267525104) is greater than itself. Its abundance is 36905861088
Bases of 21361664016
- Binary: 100111110010100000100100000000100002
- Hexadecimal: 0x4F9412010
- Base-36: 9TA6LG0
Squares and roots of 21361664016
- 21361664016 squared (213616640162) is 456320689532469248256
- 21361664016 cubed (213616640163) is 9747769253342056204096765956096
-
The
square root of 21361664016 is 146156.2999531665 -
The
cube root of 21361664016 is 2774.6722667253
Scales and comparisons
How big is 21361664016?- 21,361,664,016 seconds is equal to 679 years, 12 weeks, 1 day, 11 hours, 33 minutes, 36 seconds.
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To count from 1 to 21,361,664,016 would take you about one thousand, three hundred fifty-eight 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 21361664016 cubic inches would be around 231.2 feet tall.
Recreational maths with 21361664016
- 21361664016 backwards is 61046616312
- 21361664016 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21361664016's digits is 36
- More coming soon!
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