21390809476491
21,390,809,476,491 is an odd composite number composed of five prime numbers multiplied together.
21390809476491 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred thirty-two divisors.
Prime factorization of 21390809476491:
38 × 7 × 132 × 293 × 113
(3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 7 × 13 × 13 × 29 × 29 × 29 × 113)See below for interesting mathematical facts about the number 21390809476491 from the Numbermatics database.
Names of 21390809476491
- Cardinal: 21390809476491 can be written as Twenty-one trillion, three hundred ninety billion, eight hundred nine million, four hundred seventy-six thousand, four hundred ninety-one.
Scientific notation
- Scientific notation: 2.1390809476491 × 1013
Factors of 21390809476491
Divisors of 21390809476491
- Number of divisors d(n): 432
-
Complete list of divisors:
1 3 7 9 13 21 27 29 39 63 81 87 91 113 117 169 189 203 243 261 273 339 351 377 507 567 609 729 783 791 819 841 1017 1053 1131 1183 1469 1521 1701 1827 2187 2349 2373 2457 2523 2639 3051 3159 3277 3393 3549 4407 4563 4901 5103 5481 5887 6561 7047 7119 7371 7569 7917 9153 9477 9831 10179 10283 10647 10933 13221 13689 14703 15309 16443 17661 19097 21141 21357 22113 22707 22939 23751 24389 27459 28431 29493 30537 30849 31941 32799 34307 39663 41067 42601 44109 45927 49329 52983 57291 63423 64071 66339 68121 68817 71253 73167 76531 82377 85293 88479 91611 92547 95033 95823 98397 102921 118989 123201 127803 132327 133679 142129 147987 158949 170723 171873 190269 192213 199017 204363 206451 213759 219501 229593 247131 265437 274833 277641 285099 287469 295191 298207 308763 317057 356967 369603 383409 396981 401037 426387 443961 476847 512169 515619 553813 576639 597051 613089 619353 641277 658503 665231 688779 741393 796311 824499 832923 855297 862407 885573 894621 926289 951171 994903 1070901 1108809 1150227 1190943 1203111 1235429 1279161 1331883 1430541 1536507 1546857 1661439 1729917 1839267 1858059 1923831 1975509 1995693 2066337 2219399 2388933 2473497 2498769 2565891 2587221 2656719 2683863 2755957 2778867 2853513 2984709 3212703 3450681 3572829 3609333 3706287 3837483 3876691 4121741 4291623 4609521 4640571 4984317 5189751 5517801 5574177 5771493 5926527 5987079 6199011 6658197 7166799 7496307 7697673 7761663 7970157 8051589 8267871 8336601 8560539 8648003 8954127 9638109 10352043 10718487 10827999 11118861 11512449 11630073 12365223 12874869 13828563 13921713 14952951 16060577 16722531 17314479 17779581 17961237 18597033 19291699 19974591 21500397 22488921 23093019 23910471 24154767 24803613 25009803 25681617 25944009 26862381 28852187 31056129 32155461 32483997 33356583 34537347 34890219 35827441 37095669 38624607 41485689 41765139 44858853 48181731 50167593 53338743 53883711 55791099 57875097 59923773 67466763 69279057 71731413 72464301 74410839 75029409 77044851 77832027 80587143 86556561 93168387 97451991 100069749 103612041 104670657 107482323 111287007 112424039 124457067 125295417 134576559 144545193 150502779 160016229 161651133 167373297 173625291 179771319 207837171 217392903 223232517 225088227 231134553 233496081 241761429 250792087 259669683 279505161 292355973 300209247 310836123 314011971 322446969 333861021 337272117 373371201 403729677 433635579 465756733 484953399 502119891 520875873 539313957 623511513 652178709 669697551 693403659 700488243 725284287 752376261 779009049 877067919 900627741 932508369 942035913 967340907 1001583063 1011816351 1120113603 1211189031 1300906737 1397270199 1454860197 1562627619 1617941871 1956536127 2009092653 2080210977 2101464729 2175852861 2257128783 2337027147 2701883223 2826107739 2902022721 3004749189 3035449053 3260297131 3633567093 3902720211 4191810597 4364580591 4687882857 4853825613 6027277959 6304394187 6527558583 6771386349 7011081441 8105649669 8478323217 8706068163 9014247567 9106347159 9780891393 11708160633 12575431791 14063648571 14561476839 18081833877 18913182561 20314159047 21033244323 25434969651 26118204489 27042742701 27319041477 29342674179 35124481899 37726295373 42190945713 56739547683 60942477141 63099732969 78354613467 81957124431 88028022537 105373445697 113178886119 126572837139 182827431423 189299198907 235063840401 245871373293 264084067611 339536658357 548482294269 737614119879 792252202833 1018609975071 1645446882807 2376756608499 3055829925213 7130269825497 21390809476491
- Sum of all divisors σ(n): 41487618519360
- Sum of proper divisors (its aliquot sum) s(n): 20096809042869
- 21390809476491 is a deficient number, because the sum of its proper divisors (20096809042869) is less than itself. Its deficiency is 1294000433622
Bases of 21390809476491
- Binary: 1001101110100011011111001100110101101100010112
- Hexadecimal: 0x13746F99AD8B
- Base-36: 7KYSVO1OR
Squares and roots of 21390809476491
- 21390809476491 squared (213908094764912) is 457566730059537169481673081
- 21390809476491 cubed (213908094764913) is 9787722745484546993582023299604417038771
-
The
square root of 21390809476491 is 4625019.9433614337 -
The
cube root of 21390809476491 is 27759.3359714643
Scales and comparisons
How big is 21390809476491?- 21,390,809,476,491 seconds is equal to 680,161 years, 29 weeks, 6 days, 9 hours, 14 minutes, 51 seconds.
-
To count from 1 to 21,390,809,476,491 would take you about one million, seven hundred thousand, four hundred 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 21390809476491 cubic inches would be around 2313.3 feet tall.
Recreational maths with 21390809476491
- 21390809476491 backwards is 19467490809312
- 21390809476491 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 21390809476491's digits is 63
- More coming soon!
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