21209380085790

Names of 21209380085790

• Cardinal: 21209380085790 can be written as Twenty-one trillion, two hundred nine billion, three hundred eighty million, eighty-five thousand, seven hundred ninety.

Scientific notation

• Scientific notation: 2.120938008579 × 10¹³

Factors of 21209380085790

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 464

Divisors of 21209380085790

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 19 26 27 30 38 39 45 54 57 65 73 78 81 90 95 114 117 130 135 146 162 171 190 195 219 234 243 247 270 285 342 349 351 361 365 390 405 438 486 494 513 570 585 657 698 702 722 730 741 810 855 949 1026 1047 1053 1083 1095 1170 1215 1235 1314 1387 1482 1539 1710 1745 1755 1805 1898 1971 2094 2106 2166 2190 2223 2430 2470 2565 2774 2847 3078 3141 3159 3249 3285 3490 3510 3610 3705 3942 4161 4446 4537 4617 4693 4745 5130 5235 5265 5329 5415 5694 5913 6282 6318 6498 6570 6631 6669 6935 7410 7695 8322 8541 9074 9234 9386 9423 9490 9747 9855 10470 10530 10658 10830 11115 11826 12483 13262 13338 13611 13870 14079 14235 15390 15705 15795 15987 16245 17082 17739 18031 18846 19494 19710 19893 20007 20805 22230 22685 23085 23465 24966 25477 25623 26353 26645 27222 28158 28269 28470 29241 29565 31410 31590 31974 32490 33155 33345 35478 36062 37449 39786 40014 40833 41610 42237 42705 45370 46170 46930 47115 47961 48735 50954 51246 52706 53290 54093 56538 58482 59130 59679 60021 62415 66310 66690 68055 69277 70395 74898 76431 76869 79059 79935 81666 84474 84807 85410 86203 87723 88695 90155 94230 95922 97470 99465 100035 101251 108186 112347 119358 120042 122499 124830 125989 126711 127385 128115 131765 136110 138554 140790 141345 143883 146205 152862 153738 158118 159870 162279 169614 172406 175446 177390 179037 180310 187245 198930 200070 202502 204165 207831 211185 224694 229293 230607 237177 239805 244998 251978 253422 254770 256230 258609 263530 270465 282690 287766 292410 298395 300105 303753 324558 331201 337041 342589 346385 358074 367497 374490 377967 380133 382155 384345 395295 408330 415662 422370 424035 431015 431649 438615 458586 461214 474354 479610 484063 486837 506255 517218 537111 540930 561735 596790 600210 607506 612495 623493 629945 633555 662402 674082 685178 687879 692770 711531 719415 734994 755934 760266 764310 768690 775827 790590 811395 848070 862030 863298 877230 895185 911259 968126 973674 993603 1012510 1027767 1039155 1074222 1102491 1123470 1133901 1140399 1146465 1153035 1185885 1224990 1246986 1259890 1267110 1293045 1294947 1316263 1375758 1423062 1438830 1452189 1460511 1518765 1551654 1611333 1622790 1637857 1656005 1685205 1712945 1790370 1822518 1837485 1859821 1870479 1889835 1900665 1923769 1987206 2055534 2063637 2078310 2134593 2158245 2204982 2267802 2280798 2292930 2306070 2327481 2371770 2420315 2434185 2586090 2589894 2632526 2685555 2733777 2904378 2921022 2980809 3037530 3083301 3117465 3222666 3275714 3312010 3370410 3401703 3425890 3439395 3557655 3674970 3719642 3740958 3779670 3801330 3847538 3879135 3948789 4127274 4269186 4316490 4356567 4381533 4556295 4654962 4840630 4868370 4913571 4968015 5138835 5371110 5467554 5512455 5579463 5611437 5669505 5701995 5771307 5961618 6166602 6190911 6234930 6292819 6403779 6474735 6581315 6803406 6878790 6982443 7115310 7260945 7302555 7758270 7897578 8056665 8189285 8201331 8713134 8763066 8942427 9112590 9197197 9249903 9299105 9352395 9618845 9827142 9936030 10205109 10277670 10318185 10672965 11024910 11158926 11222874 11339010 11403990 11542614 11637405 11846367 12381822 12585638 12807558 12949470 13069701 13162630 13668885 13964886 14521890 14605110 14740713 14904045 15416505 16113330 16378570 16402662 16738389 16834311 17008515 17313921 17884854 18394394 18499806 18598210 18704790 18878457 19237690 19743945 20410218 20636370 20947329 21345930 21782835 21907665 23274810 23692734 24177673 24567855 24603993 25008997 26139402 26827281 27337770 27591591 27749709 27897315 28057185 28856535 29481426 29808090 30615327 30833010 30954555 31464095 32018895 33476778 33668622 34017030 34627842 34912215 35336599 35539101 37756914 39209103 39487890 41006655 41894658 43565670 43815330 44222139 44712135 45985985 46249515 48355346 49135710 49207986 50017994 50215167 51025545 51941763 53654562 55183182 55499418 55794630 56114370 56635371 57713070 59231835 61230654 61909110 62928190 64037790 65348505 69824430 70673198 71078202 72533019 73703565 75026991 78418206 80481843 82013310 82774773 83249127 83691945 84171555 86569605 88444278 89424270 91971970 92499030 94392285 100430334 102051090 103883526 104736645 106009797 106617303 113270742 117627309 118463670 119563561 120888365 123019965 125044985 130697010 132666417 134136405 137957955 138748545 145066038 147407130 150053982 150645501 153076635 155825289 160963686 165549546 166498254 167383890 168343110 169906113 173139210 176682995 177695505 188784570 196045515 209473290 212019594 213234606 217599057 221110695 225080973 235254618 239127122 241776730 246039930 248324319 250089970 251075835 259708815 265332834 268272810 275915910 277497090 283176855 301291002 306153270 311650578 318029391 319851909 339812226 353365990 355391010 358690683 362665095 375134955 392091030 397999251 402409215 413873865 416245635 435198114 442221390 450161946 451936503 459375787 467475867 496648638 502151670 509718339 519417630 530048985 533086515 566353710 588136545 597817805 636058782 639703818 652797171 663332085 671395381 675242919 717381366 725330190 744972957 750269910 753227505 779126445 795998502 804818430 827747730 832491270 849530565 903873006 918751574 934951734 954088173 1019436678 1060097970 1066173030 1076072049 1087995285 1125404865 1176273090 1195635610 1241621595 1305594342 1326664170 1342790762 1350485838 1378127361 1489945914 1506455010 1529155017 1558252890 1590146955 1599259545 1699061130 1793453415 1908176346 1958391513 1989996255 2014186143 2025728757 2152144098 2175990570 2234918871 2250809730 2259682515 2296878935 2337379335 2483243190 2548591695 2756254722 2862264519 3058310034 3180293910 3198519090 3228216147 3263985855 3356976905 3376214595 3586906830 3724864785 3916783026 3979992510 4028372286 4051457514 4134382083 4469837742 4519365030 4593757870 4674758670 4770440865 5097183390 5380360245 5724529038 5875174539 6042558429 6077186271 6456432294 6527971710 6713953810 6752429190 6890636805 7449729570 7645775085 8268764166 8586793557 8728139953 9540881730 9684648441 9791957565 10070930715 10128643785 10760720490 11174594355 11750349078 12085116858 12154372542 12403146249 13781273610 14311322595 15291550170 16141080735 17173587114 17456279906 18127675287 19369296882 19583915130 20141861430 20257287570 20671910415 22349188710 24806292498 26184419859 28622645190 29053945323 29375872695 30212792145 30385931355 32282161470 36255350574 37209438747 41343820830 42933967785 43640699765 48423242205 52368839718 54383025861 58107890646 58751745390 60425584290 60771862710 62015731245 74418877494 78553259577 85867935570 87281399530 90638376435 96846484410 108766051722 111628316241 124031462490 130922099295 145269726615 157106519154 163149077583 181276752870 186047193735 223256632482 235659778731 261844198590 271915129305 290539453230 326298155166 372094387470 392766297885 471319557462 543830258610 558141581205 706979336193 785532595770 815745387915 1116283162410 1178298893655 1413958672386 1631490775830 2120938008579 2356597787310 3534896680965 4241876017158 7069793361930 10604690042895 21209380085790
• Sum of all divisors σ(n): 66089111306400
• Sum of proper divisors (its aliquot sum) s(n): 44879731220610
• 21209380085790 is an abundant number, because the sum of its proper divisors (44879731220610) is greater than itself. Its abundance is 23670351134820

Bases of 21209380085790

• Binary: 100110100101000110001100100001110000000011110₂
• Hexadecimal: 0x134A3190E01E
• Base-36: 7INGDAJVI

Squares and roots of 21209380085790

• 21209380085790 squared (21209380085790²) is 449837803623505427759924100
• 21209380085790 cubed (21209380085790³) is 9540780954007888722283309655581888539000
• The square root of 21209380085790 is 4605364.2728659369
• The cube root of 21209380085790 is 27680.6313643193

Scales and comparisons

• 21,209,380,085,790 seconds is equal to 674,392 years, 35 weeks, 3 days, 4 hours, 16 minutes, 30 seconds.
• To count from 1 to 21,209,380,085,790 would take you about one million, six hundred eighty-five thousand, nine hundred eighty-one 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 21209380085790 cubic inches would be around 2306.7 feet tall.

Recreational maths with 21209380085790

• 21209380085790 backwards is 09758008390212
• 21209380085790 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21209380085790's digits is 54
• More coming soon!