21289189824
21,289,189,824 is an even composite number composed of five prime numbers multiplied together.
21289189824 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty divisors.
Prime factorization of 21289189824:
26 × 34 × 7 × 71 × 8263
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 7 × 71 × 8263)See below for interesting mathematical facts about the number 21289189824 from the Numbermatics database.
Names of 21289189824
- Cardinal: 21289189824 can be written as Twenty-one billion, two hundred eighty-nine million, one hundred eighty-nine thousand, eight hundred twenty-four.
Scientific notation
- Scientific notation: 2.1289189824 × 1010
Factors of 21289189824
Divisors of 21289189824
- Number of divisors d(n): 280
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 71 72 81 84 96 108 112 126 142 144 162 168 189 192 213 216 224 252 284 288 324 336 378 426 432 448 497 504 567 568 576 639 648 672 756 852 864 994 1008 1134 1136 1278 1296 1344 1491 1512 1704 1728 1917 1988 2016 2268 2272 2556 2592 2982 3024 3408 3834 3976 4032 4473 4536 4544 5112 5184 5751 5964 6048 6816 7668 7952 8263 8946 9072 10224 11502 11928 12096 13419 13632 15336 15904 16526 17892 18144 20448 23004 23856 24789 26838 30672 31808 33052 35784 36288 40257 40896 46008 47712 49578 53676 57841 61344 66104 71568 74367 80514 92016 95424 99156 107352 115682 122688 132208 143136 148734 161028 173523 184032 198312 214704 223101 231364 264416 286272 297468 322056 347046 368064 396624 429408 446202 462728 520569 528832 586673 594936 644112 669303 694092 793248 858816 892404 925456 1041138 1173346 1189872 1288224 1338606 1388184 1561707 1586496 1760019 1784808 1850912 2082276 2346692 2379744 2576448 2677212 2776368 3123414 3520038 3569616 3701824 4106711 4164552 4685121 4693384 4759488 5280057 5354424 5552736 6246828 7040076 7139232 8213422 8329104 9370242 9386768 10560114 10708848 11105472 12320133 12493656 14080152 14278464 15840171 16426844 16658208 18740484 18773536 21120228 21417696 24640266 24987312 28160304 31680342 32853688 33316416 36960399 37480968 37547072 42240456 42835392 47520513 49280532 49974624 56320608 63360684 65707376 73920798 74961936 84480912 95041026 98561064 99949248 110881197 112641216 126721368 131414752 147841596 149923872 168961824 190082052 197122128 221762394 253442736 262829504 295683192 299847744 332643591 337923648 380164104 394244256 443524788 506885472 591366384 665287182 760328208 788488512 887049576 1013770944 1182732768 1330574364 1520656416 1774099152 2365465536 2661148728 3041312832 3548198304 5322297456 7096396608 10644594912 21289189824
- Sum of all divisors σ(n): 73147903488
- Sum of proper divisors (its aliquot sum) s(n): 51858713664
- 21289189824 is an abundant number, because the sum of its proper divisors (51858713664) is greater than itself. Its abundance is 30569523840
Bases of 21289189824
- Binary: 100111101001110111101000001110000002
- Hexadecimal: 0x4F4EF41C0
- Base-36: 9S31800
Squares and roots of 21289189824
- 21289189824 squared (212891898242) is 453229603362305150976
- 21289189824 cubed (212891898243) is 9648891059836343005341042868224
-
The
square root of 21289189824 is 145908.1554403317 -
The
cube root of 21289189824 is 2771.5308139395
Scales and comparisons
How big is 21289189824?- 21,289,189,824 seconds is equal to 676 years, 48 weeks, 2 days, 15 hours, 50 minutes, 24 seconds.
-
To count from 1 to 21,289,189,824 would take you about one thousand, three hundred fifty-three 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 21289189824 cubic inches would be around 231 feet tall.
Recreational maths with 21289189824
- 21289189824 backwards is 42898198212
- 21289189824 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21289189824's digits is 54
- More coming soon!
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