21438816739956

Names of 21438816739956

• Cardinal: 21438816739956 can be written as Twenty-one trillion, four hundred thirty-eight billion, eight hundred sixteen million, seven hundred thirty-nine thousand, nine hundred fifty-six.

Scientific notation

• Scientific notation: 2.1438816739956 × 10¹³

Factors of 21438816739956

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 24
• Sum of prime factors: 23

Divisors of 21438816739956

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 18 21 22 27 28 33 36 42 44 49 54 63 66 77 81 84 98 99 108 121 126 132 147 154 162 189 196 198 231 242 243 252 294 297 308 324 343 363 378 396 441 462 484 486 539 567 588 594 686 693 726 729 756 847 882 891 924 972 1029 1078 1089 1134 1188 1323 1372 1386 1452 1458 1617 1694 1701 1764 1782 2058 2079 2156 2178 2187 2268 2541 2646 2673 2772 2916 3087 3234 3267 3388 3402 3564 3773 3969 4116 4158 4356 4374 4851 5082 5103 5292 5346 5929 6174 6237 6468 6534 6561 6804 7546 7623 7938 8019 8316 8748 9261 9702 9801 10164 10206 10692 11319 11858 11907 12348 12474 13068 13122 14553 15092 15246 15309 15876 16038 17787 18522 18711 19404 19602 19683 20412 22638 22869 23716 23814 24057 24948 26244 27783 29106 29403 30492 30618 32076 33957 35574 35721 37044 37422 39204 39366 41503 43659 45276 45738 45927 47628 48114 53361 55566 56133 58212 58806 59049 61236 67914 68607 71148 71442 72171 74844 78732 83006 83349 87318 88209 91476 91854 96228 101871 106722 107163 111132 112266 117612 118098 124509 130977 135828 137214 137781 142884 144342 160083 166012 166698 168399 174636 176418 177147 183708 203742 205821 213444 214326 216513 224532 236196 249018 250047 261954 264627 274428 275562 288684 305613 320166 321489 333396 336798 352836 354294 373527 392931 407484 411642 413343 428652 433026 480249 498036 500094 505197 523908 529254 531441 551124 611226 617463 640332 642978 649539 673596 708588 747054 750141 785862 793881 823284 826686 866052 916839 960498 964467 1000188 1010394 1058508 1062882 1120581 1178793 1222452 1234926 1240029 1285956 1299078 1440747 1494108 1500282 1515591 1571724 1587762 1594323 1653372 1833678 1852389 1920996 1928934 1948617 2020788 2125764 2241162 2250423 2357586 2381643 2469852 2480058 2598156 2750517 2881494 2893401 3000564 3031182 3175524 3188646 3361743 3536379 3667356 3704778 3720087 3857868 3897234 4322241 4482324 4500846 4546773 4715172 4763286 4782969 4960116 5501034 5557167 5762988 5786802 5845851 6062364 6377292 6723486 6751269 7072758 7144929 7409556 7440174 7794468 8251551 8644482 8680203 9001692 9093546 9526572 9565938 10085229 10609137 11002068 11114334 11160261 11573604 11691702 12966723 13446972 13502538 13640319 14145516 14289858 14348907 14880348 16503102 16671501 17288964 17360406 17537553 18187092 19131876 20170458 20253807 21218274 21434787 22228668 22320522 23383404 24754653 25933446 26040609 27005076 27280638 28579716 28697814 30255687 31827411 33006204 33343002 33480783 34720812 35075106 38900169 40340916 40507614 40920957 42436548 42869574 43046721 44641044 49509306 50014503 51866892 52081218 52612659 54561276 57395628 60511374 60761421 63654822 64304361 66686004 66961566 70150212 74263959 77800338 78121827 81015228 81841914 85739148 86093442 90767061 95482233 99018612 100029006 100442349 104162436 105225318 116700507 121022748 121522842 122762871 127309644 128608722 129140163 133923132 148527918 150043509 155600676 156243654 157837977 163683828 172186884 181534122 182284263 190964466 192913083 200058012 200884698 210450636 222791877 233401014 234365481 243045684 245525742 257217444 258280326 272301183 286446699 297055836 300087018 301327047 312487308 315675954 350101521 363068244 364568526 368288613 381928932 385826166 401769396 445583754 450130527 466802028 468730962 473513931 491051484 516560652 544602366 546852789 572893398 578739249 600174036 602654094 631351908 668375631 700203042 703096443 729137052 736577226 771652332 816903549 859340097 891167508 900261054 903981141 937461924 947027862 1050304563 1089204732 1093705578 1104865839 1145786796 1157478498 1205308188 1336751262 1350391581 1400406084 1406192886 1420541793 1473154452 1633807098 1640558367 1718680194 1736217747 1800522108 1807962282 1894055724 2005126893 2100609126 2109289329 2187411156 2209731678 2314956996 2450710647 2578020291 2673502524 2700783162 2812385772 2841083586 3150913689 3267614196 3281116734 3314597517 3437360388 3472435494 3615924564 4010253786 4051174743 4201218252 4218578658 4419463356 4901421294 4921675101 5156040582 5208653241 5401566324 5682167172 6015380679 6301827378 6327867987 6562233468 6629195034 6944870988 7352131941 7734060873 8020507572 8102349486 8437157316 9452741067 9802842588 9843350202 9943792551 10312081164 10417306482 12030761358 12153524229 12603654756 12655735974 13258390068 14704263882 14765025303 15468121746 15625959723 16204698972 18046142037 18905482134 19686700404 19887585102 20834612964 22056395823 23202182619 24061522716 24307048458 25311471948 28358223201 29408527764 29530050606 30936243492 31251919446 36092284074 36460572687 37810964268 39775170204 44112791646 44295075909 46404365238 48614096916 54138426111 56716446402 59060101212 62503838892 66169187469 69606547857 72184568148 72921145374 85074669603 88225583292 88590151818 92808730476 108276852222 109381718061 113432892804 132338374938 139213095714 145842290748 162415278333 170149339206 177180303636 198507562407 216553704444 218763436122 255224008809 264676749876 278426191428 324830556666 340298678412 397015124814 437526872244 487245834999 510448017618 595522687221 649661113332 765672026427 794030249628 974491669998 1020896035236 1191045374442 1531344052854 1786568061663 1948983339996 2382090748884 3062688105708 3573136123326 5359704184989 7146272246652 10719408369978 21438816739956
• Sum of all divisors σ(n): 72137694865600
• Sum of proper divisors (its aliquot sum) s(n): 50698878125644
• 21438816739956 is an abundant number, because the sum of its proper divisors (50698878125644) is greater than itself. Its abundance is 29260061385688

Bases of 21438816739956

• Binary: 100110111111110011101000011100110001001110100₂
• Hexadecimal: 0x137F9D0E6274
• Base-36: 7LKUTYB90

Squares and roots of 21438816739956

• 21438816739956 squared (21438816739956²) is 459622863209417611726881936
• 21438816739956 cubed (21438816739956³) is 9853770333840569013959882382604425834816
• The square root of 21438816739956 is 4630206.9867292111
• The cube root of 21438816739956 is 27780.0871581777

Scales and comparisons

• 21,438,816,739,956 seconds is equal to 681,688 years, 3 weeks, 12 minutes, 36 seconds.
• To count from 1 to 21,438,816,739,956 would take you about one million, seven hundred four thousand, two hundred twenty 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 21438816739956 cubic inches would be around 2315 feet tall.

Recreational maths with 21438816739956

• 21438816739956 backwards is 65993761883412
• The number of decimal digits it has is: 14
• The sum of 21438816739956's digits is 72
• More coming soon!