21039390908928

Names of 21039390908928

• Cardinal: 21039390908928 can be written as Twenty-one trillion, thirty-nine billion, three hundred ninety million, nine hundred eight thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1039390908928 × 10¹³

Factors of 21039390908928

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 209

Divisors of 21039390908928

• Number of divisors d(n): 630
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 64 72 84 96 98 112 126 128 144 147 168 192 196 197 224 252 256 288 294 336 343 384 392 394 441 448 504 512 576 588 591 672 686 768 784 788 882 896 1008 1029 1152 1176 1182 1344 1372 1379 1536 1568 1576 1764 1773 1792 2016 2058 2304 2352 2364 2401 2688 2744 2758 3087 3136 3152 3528 3546 3584 4032 4116 4137 4608 4704 4728 4802 5376 5488 5516 6174 6272 6304 7056 7092 7203 8064 8232 8274 9408 9456 9604 9653 10752 10976 11032 12348 12411 12544 12608 14112 14184 14406 16128 16464 16548 16807 18816 18912 19208 19306 21609 21952 22064 24696 24822 25088 25216 28224 28368 28812 28959 32256 32928 33096 33614 37632 37824 38416 38612 38809 43218 43904 44128 49392 49644 50421 50432 56448 56736 57624 57918 65856 66192 67228 67571 75264 75648 76832 77224 77618 86436 86877 87808 88256 98784 99288 100842 100864 112896 113472 115248 115836 116427 117649 131712 132384 134456 135142 151263 151296 153664 154448 155236 172872 173754 175616 176512 197568 198576 201684 202713 225792 226944 230496 231672 232854 235298 263424 264768 268912 270284 271663 302526 302592 307328 308896 310472 345744 347508 349281 352947 353024 395136 397152 403368 405426 453888 460992 463344 465708 470596 472997 526848 529536 537824 540568 543326 605052 608139 614656 617792 620944 691488 695016 698562 705894 706048 790272 794304 806736 810852 814989 907776 921984 926688 931416 941192 945994 1058841 1059072 1075648 1081136 1086652 1210104 1216278 1229312 1235584 1241888 1382976 1390032 1397124 1411788 1418991 1580544 1588608 1613472 1621704 1629978 1843968 1853376 1862832 1882384 1891988 1901641 2117682 2118144 2151296 2162272 2173304 2420208 2432556 2444967 2471168 2483776 2765952 2780064 2794248 2823576 2837982 3177216 3226944 3243408 3259956 3310979 3687936 3706752 3725664 3764768 3783976 3803282 4235364 4256973 4302592 4324544 4346608 4840416 4865112 4889934 4942336 4967552 5531904 5560128 5588496 5647152 5675964 5704923 6354432 6453888 6486816 6519912 6621958 7413504 7451328 7529536 7567952 7606564 8470728 8513946 8605184 8649088 8693216 9680832 9730224 9779868 9932937 9935104 11063808 11120256 11176992 11294304 11351928 11409846 12907776 12973632 13039824 13243916 13311487 14827008 14902656 15059072 15135904 15213128 16941456 17027892 17114769 17298176 17386432 19361664 19460448 19559736 19865874 19870208 22240512 22353984 22588608 22703856 22819692 23176853 25815552 25947264 26079648 26487832 26622974 29798811 29805312 30118144 30271808 30426256 33882912 34055784 34229538 34596352 34772864 38723328 38920896 39119472 39731748 39934461 44481024 44707968 45177216 45407712 45639384 46353706 51894528 52159296 52975664 53245948 59597622 59610624 60236288 60543616 60852512 67765824 68111568 68459076 69530559 69545728 77446656 77841792 78238944 79463496 79868922 89415936 90354432 90815424 91278768 92707412 93180409 103789056 104318592 105951328 106491896 119195244 119803383 121087232 121705024 135531648 136223136 136918152 139061118 139091456 155683584 156477888 158926992 159737844 178831872 180708864 181630848 182557536 185414824 186360818 208591677 208637184 211902656 212983792 238390488 239606766 242174464 243410048 271063296 272446272 273836304 278122236 279541227 311367168 312955776 317853984 319475688 363261696 365115072 370829648 372721636 417183354 417274368 423805312 425967584 476780976 479213532 486820096 542126592 544892544 547672608 556244472 559082454 625911552 635707968 638951376 652262863 726523392 730230144 741659296 745443272 834366708 838623681 847610624 851935168 953561952 958427064 973640192 1089785088 1095345216 1112488944 1118164908 1251823104 1271415936 1277902752 1304525726 1460460288 1483318592 1490886544 1668733416 1677247362 1695221248 1703870336 1907123904 1916854128 1956788589 2179570176 2190690432 2224977888 2236329816 2542831872 2555805504 2609051452 2920920576 2966637184 2981773088 3337466832 3354494724 3407740672 3814247808 3833708256 3913577178 4381380864 4449955776 4472659632 4565840041 5085663744 5111611008 5218102904 5870365767 5933274368 5963546176 6674933664 6708989448 6815481344 7628495616 7667416512 7827154356 8762761728 8899911552 8945319264 9131680082 10223222016 10436205808 11740731534 11866548736 11927092352 13349867328 13417978896 13697520123 15256991232 15334833024 15654308712 17799823104 17890638528 18263360164 20446444032 20872411616 23481463068 23854184704 26699734656 26835957792 27395040246 30669666048 31308617424 35599646208 35781277056 36526720328 41092560369 41744823232 46962926136 47708369408 53399469312 53671915584 54790080492 61339332096 62617234848 71562554112 73053440656 82185120738 83489646464 93925852272 106798938624 107343831168 109580160984 125234469696 143125108224 146106881312 164370241476 166979292928 187851704544 214687662336 219160321968 250468939392 292213762624 328740482952 333958585856 375703409088 429375324672 438320643936 500937878784 584427525248 657480965904 751406818176 876641287872 1001875757568 1168855050496 1314961931808 1502813636352 1753282575744 2337710100992 2629923863616 3005627272704 3506565151488 5259847727232 7013130302976 10519695454464 21039390908928
• Sum of all divisors σ(n): 71202630542901
• Sum of proper divisors (its aliquot sum) s(n): 50163239633973
• 21039390908928 is an abundant number, because the sum of its proper divisors (50163239633973) is greater than itself. Its abundance is 29123848725045

Bases of 21039390908928

• Binary: 100110010001010011101011010111110001000000000₂
• Hexadecimal: 0x13229D6BE200
• Base-36: 7GHD24JK0

Squares and roots of 21039390908928

• 21039390908928 squared (21039390908928²) is 442655969818682173990109184
• 21039390908928 cubed (21039390908928³) is 9313211987185888879980914305239720394752
• The square root of 21039390908928 is 4586871.5819093955
• The cube root of 21039390908928 is 27606.4812322901

Scales and comparisons

• 21,039,390,908,928 seconds is equal to 668,987 years, 28 weeks, 4 days, 20 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,039,390,908,928 would take you about one million, six hundred seventy-two thousand, four hundred sixty-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 21039390908928 cubic inches would be around 2300.5 feet tall.

Recreational maths with 21039390908928

• 21039390908928 backwards is 82980909393012
• 21039390908928 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21039390908928's digits is 63
• More coming soon!