21378789471312

Names of 21378789471312

• Cardinal: 21378789471312 can be written as Twenty-one trillion, three hundred seventy-eight billion, seven hundred eighty-nine million, four hundred seventy-one thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.1378789471312 × 10¹³

Factors of 21378789471312

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 855

Divisors of 21378789471312

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 27 28 36 39 42 48 52 54 56 63 72 73 78 84 91 104 108 112 117 126 144 146 156 168 169 182 189 208 216 219 234 252 273 292 312 336 338 351 364 378 432 438 468 504 507 511 546 584 624 657 676 702 728 756 757 819 876 936 949 1008 1014 1022 1092 1168 1183 1314 1352 1404 1456 1512 1514 1521 1533 1638 1752 1872 1898 1971 2028 2044 2184 2271 2366 2457 2628 2704 2808 2847 3024 3028 3042 3066 3276 3504 3549 3796 3942 4056 4088 4368 4542 4563 4599 4732 4914 5256 5299 5616 5694 6056 6084 6132 6552 6643 6813 7098 7592 7884 8112 8176 8541 9084 9126 9198 9464 9828 9841 10512 10598 10647 11388 12112 12168 12264 12337 13104 13286 13626 13797 14196 15184 15768 15897 17082 18168 18252 18396 18928 19656 19682 19929 20439 21196 21294 22776 24336 24528 24674 25623 26572 27252 27594 28392 29523 31536 31794 31941 34164 36336 36504 36792 37011 39312 39364 39858 40878 42392 42588 45552 47691 49348 51246 53144 54504 55188 55261 56784 59046 59787 63588 63882 68328 68887 73008 73584 74022 78728 79716 81756 84784 85176 86359 88569 95382 98696 102492 106288 109008 110376 110522 111033 118092 119574 127176 127764 127933 136656 137774 143073 148044 157456 159432 163512 165783 170352 172718 177138 179361 190764 197392 204984 206661 220752 221044 222066 236184 239148 254352 255528 255866 259077 265707 275548 286146 296088 318864 327024 331566 333099 345436 354276 358722 381528 383799 386827 409968 413322 442088 444132 472368 478296 497349 511056 511732 518154 531414 551096 572292 573049 592176 619983 663132 666198 690872 708552 717444 718393 763056 767598 773654 777231 826644 884176 888264 895531 956592 994698 1023464 1036308 1062828 1102192 1144584 1146098 1151397 1160481 1239966 1326264 1332396 1381744 1417104 1434888 1436786 1492047 1535196 1547308 1554462 1653288 1719147 1776528 1791062 1859949 1989396 2046928 2072616 2125656 2155179 2289168 2292196 2302794 2320962 2331693 2479932 2652528 2664792 2686593 2869776 2873572 2984094 3070392 3094616 3108924 3306576 3438294 3454191 3481443 3582124 3719898 3978792 4011343 4145232 4251312 4310358 4584392 4605588 4641924 4663386 4959864 5028751 5157441 5329584 5373186 5747144 5968188 6140784 6189232 6217848 6465537 6876588 6908382 6962886 7164248 7439796 7449637 7957584 8022686 8059779 8620716 9168784 9211176 9283848 9326772 9339109 9919728 10057502 10314882 10444329 10746372 11494288 11936376 12034029 12435696 12931074 13753176 13816764 13925772 14328496 14879592 14899274 15086253 15472323 16045372 16119558 17241432 18422352 18567696 18653544 18678218 19396611 20115004 20629764 20888658 21492744 22348911 23872752 24068058 24179337 25862148 27506352 27633528 27851544 28017327 29759184 29798548 30172506 30944646 32090744 32239116 34482864 36102087 37307088 37356436 38793222 40230008 41259528 41777316 41832577 42985488 44697822 45258759 48136116 48358674 51724296 52147459 55267056 55703088 56034654 59597096 60345012 61889292 64181488 64478232 65373763 67046733 72204174 74712872 77586444 80460016 82519056 83554632 83665154 84051981 89395644 90517518 96272232 96717348 96845281 103448592 104294918 108306261 112069308 119194192 120690024 123778584 125497731 128956464 130747526 134093466 135776277 144408348 149425744 155172888 156442377 167109264 167330308 168103962 178791288 181035036 192544464 193434696 193690562 196121289 201140199 208589836 216612522 224138616 241380048 247557168 250995462 252155943 261495052 268186932 271552554 288816696 290535843 292828039 310345776 312884754 334660616 336207924 357582576 362070072 376493193 386869392 387381124 392242578 402280398 417179672 433225044 448277232 469327131 501990924 504311886 522990104 536373864 543105108 543823501 577633392 581071686 585656078 588363867 625769508 669321232 672415848 677916967 724140144 752986386 774762248 784485156 804560796 834359344 866450088 871607529 878484117 938654262 1003981848 1008623772 1045980208 1072747728 1086210216 1087647002 1129479579 1162143372 1171312156 1176727734 1251539016 1344831696 1355833934 1407981393 1505972772 1549524496 1568970312 1609121592 1631470503 1732900176 1743215058 1756968234 1765091601 1877308524 2007963696 2017247544 2033750901 2172420432 2175294004 2258959158 2324286744 2342624312 2353455468 2503078032 2614822587 2635452351 2711667868 2815962786 3011945544 3137940624 3218243184 3262941006 3486430116 3513936468 3530183202 3754617048 3806764507 4034495088 4067501802 4350588008 4517918316 4648573488 4685248624 4706910936 4894411509 5229645174 5270904702 5423335736 5631925572 6023891088 6101252703 6525882012 6972860232 7027872936 7060366404 7069705513 7509234096 7613529014 7906357053 8135003604 8701176016 9035836632 9413821872 9788823018 10459290348 10541809404 10846671472 11263851144 11420293521 12202505406 13051764024 13945720464 14055745872 14120732808 14139411026 14683234527 15227058028 15812714106 16270007208 18071673264 18303758109 19577646036 20918580696 21083618808 21209116539 22527702288 22840587042 24405010812 26103528048 28241465616 28278822052 29366469054 30454116056 31625428212 32540014416 34260880563 36607516218 39155292072 41837161392 42167237616 42418233078 45681174084 48810021624 49487938591 56557644104 58732938108 60908232112 63250856424 63627349617 68521761126 73215032436 78310584144 84836466156 91362348168 97620043248 98975877182 102782641689 113115288208 117465876216 126501712848 127254699234 137043522252 146430064872 148463815773 169672932312 182724696336 190882048851 197951754364 205565283378 234931752432 254509398468 274087044504 292860129744 296927631546 339345864624 381764097702 395903508728 411130566756 445391447319 509018796936 548174089008 593855263092 763528195404 791807017456 822261133512 890782894638 1018037593872 1187710526184 1336174341957 1527056390808 1644522267024 1781565789276 2375421052368 2672348683914 3054112781616 3563131578552 5344697367828 7126263157104 10689394735656 21378789471312
• Sum of all divisors σ(n): 77083304388480
• Sum of proper divisors (its aliquot sum) s(n): 55704514917168
• 21378789471312 is an abundant number, because the sum of its proper divisors (55704514917168) is greater than itself. Its abundance is 34325725445856

Bases of 21378789471312

• Binary: 100110111000110100011001001101111010001010000₂
• Hexadecimal: 0x1371A326F450
• Base-36: 7KTA39MC0

Squares and roots of 21378789471312

• 21378789471312 squared (21378789471312²) is 457052639258680824471001344
• 21378789471312 cubed (21378789471312³) is 9771232152018847278998951095169001443328
• The square root of 21378789471312 is 4623720.3063455301
• The cube root of 21378789471312 is 27754.1354532919

Scales and comparisons

• 21,378,789,471,312 seconds is equal to 679,779 years, 19 weeks, 3 days, 22 hours, 55 minutes, 12 seconds.
• To count from 1 to 21,378,789,471,312 would take you about one million, six hundred ninety-nine thousand, four hundred forty-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 21378789471312 cubic inches would be around 2312.8 feet tall.

Recreational maths with 21378789471312

• 21378789471312 backwards is 21317498787312
• 21378789471312 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21378789471312's digits is 63
• More coming soon!