21391088865432

Names of 21391088865432

• Cardinal: 21391088865432 can be written as Twenty-one trillion, three hundred ninety-one billion, eighty-eight million, eight hundred sixty-five thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 2.1391088865432 × 10¹³

Factors of 21391088865432

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 258

Divisors of 21391088865432

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 22 24 26 33 39 44 52 66 78 88 104 121 132 143 156 169 229 242 264 286 312 338 363 429 458 484 507 572 676 687 726 858 916 968 1014 1144 1331 1352 1374 1452 1573 1716 1832 1859 2028 2197 2519 2662 2748 2904 2977 3146 3432 3718 3993 4056 4394 4719 5038 5324 5496 5577 5954 6292 6591 7436 7557 7986 8788 8931 9438 10076 10648 11154 11908 12584 13182 14641 14872 15114 15972 17303 17576 17862 18876 20152 20449 22308 23816 24167 26364 27709 29282 30228 31944 32747 34606 35724 37752 38701 40898 43923 44616 48334 51909 52728 55418 58564 60456 61347 65494 69212 71448 72501 77402 81796 83127 87846 96668 98241 103818 110836 116103 117128 122694 130988 138424 145002 154804 161051 163592 166254 175692 190333 193336 196482 207636 221672 224939 232206 245388 261976 265837 290004 304799 309608 322102 332508 351384 360217 380666 392964 415272 425711 449878 464412 483153 490776 503113 531674 570999 580008 609598 644204 665016 674817 720434 761332 785928 797511 851422 899756 914397 928824 966306 1006226 1063348 1080651 1141998 1219196 1277133 1288408 1349634 1440868 1509339 1522664 1595022 1702844 1771561 1799512 1828794 1932612 2012452 2093663 2126696 2161302 2283996 2438392 2474329 2554266 2699268 2881736 2924207 3018678 3190044 3352789 3405688 3543122 3657588 3865224 3962387 4024904 4187326 4322604 4567992 4682821 4948658 5108532 5314683 5398536 5534243 5848414 6037356 6280989 6380088 6705578 7086244 7315176 7422987 7924774 8374652 8645208 8772621 9365642 9897316 10058367 10217064 10629366 11068486 11696828 11887161 12074712 12561978 13411156 14048463 14172488 14845974 15849548 16602729 16749304 17545242 18731284 19794632 20116734 21258732 22136972 23030293 23393656 23774322 25123956 26822312 27217619 28096926 29691948 31699096 32166277 33205458 35090484 36880679 37462568 40233468 42517464 43586257 44273944 46060586 47548644 50247912 51511031 54435238 56193852 59383896 60876673 64332554 66410916 69090879 70180968 73761358 80466936 81652857 87172514 92121172 95097288 96498831 103022062 108870476 110642037 112387704 121753346 128665108 130758771 132821832 138181758 147522716 154533093 163305714 174345028 182630019 184242344 192997662 206044124 217740952 221284074 243506692 257330216 261517542 276363516 295045432 299393809 309066186 326611428 348690056 353829047 365260038 385995324 405687469 412088248 442568148 479448827 487013384 523035084 552727032 566621341 598787618 618132372 653222856 669643403 707658094 730520076 771990648 811374938 885136296 898181427 958897654 1046070168 1061487141 1133242682 1197575236 1217062407 1236264744 1339286806 1415316188 1438346481 1461040152 1622749876 1699864023 1796362854 1917795308 2008930209 2122974282 2266485364 2395150472 2434124814 2678573612 2830632376 2876692962 3245499752 3399728046 3592725708 3835590616 3892119517 4017860418 4245948564 4532970728 4868249628 5273937097 5357147224 5753385924 6232834751 6799456092 7185451416 7366077433 7784239034 8035720836 8491897128 9736499256 10547874194 11506771848 11676358551 12465669502 13598912184 14732154866 15568478068 15821811291 16071441672 18698504253 21095748388 22098232299 23352717102 24931339004 29464309732 31136956136 31643622582 37397008506 42191496776 44196464598 46705434204 49862678008 58928619464 63287245164 68561182261 74794017012 81026851763 88392929196 93410868408 126574490328 137122364522 149588034024 162053703526 176785858392 205683546783 243080555289 274244729044 324107407052 411367093566 486161110578 548489458088 648214814104 822734187132 891295369393 972322221156 1645468374264 1782590738786 1944644442312 2673886108179 3565181477572 5347772216358 7130362955144 10695544432716 21391088865432
• Sum of all divisors σ(n): 64003661148000
• Sum of proper divisors (its aliquot sum) s(n): 42612572282568
• 21391088865432 is an abundant number, because the sum of its proper divisors (42612572282568) is greater than itself. Its abundance is 21221483417136

Bases of 21391088865432

• Binary: 100110111010010000000010000001101000010011000₂
• Hexadecimal: 0x13748040D098
• Base-36: 7KYXI0BKO

Squares and roots of 21391088865432

• 21391088865432 squared (21391088865432²) is 457578682848808889004546624
• 21391088865432 cubed (21391088865432³) is 9788106267746196295088863663069705901568
• The square root of 21391088865432 is 4625050.1473424047
• The cube root of 21391088865432 is 27759.4568273819

Scales and comparisons

• 21,391,088,865,432 seconds is equal to 680,170 years, 23 weeks, 6 days, 1 hour, 17 minutes, 12 seconds.
• To count from 1 to 21,391,088,865,432 would take you about one million, seven hundred thousand, four hundred twenty-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 21391088865432 cubic inches would be around 2313.3 feet tall.

Recreational maths with 21391088865432

• 21391088865432 backwards is 23456888019312
• The number of decimal digits it has is: 14
• The sum of 21391088865432's digits is 60
• More coming soon!