21428648394426

Names of 21428648394426

• Cardinal: 21428648394426 can be written as Twenty-one trillion, four hundred twenty-eight billion, six hundred forty-eight million, three hundred ninety-four thousand, four hundred twenty-six.

Scientific notation

• Scientific notation: 2.1428648394426 × 10¹³

Factors of 21428648394426

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 17022

Divisors of 21428648394426

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 54 59 63 78 81 91 117 118 126 162 177 182 189 234 273 351 354 378 413 531 546 567 702 767 819 826 1053 1062 1134 1239 1534 1593 1607 1638 2106 2301 2457 2478 3186 3214 3717 4602 4779 4821 4914 5369 6903 7371 7434 9558 9642 10738 11151 11249 13806 14463 14742 15331 16107 20709 20891 22302 22498 28926 30662 32214 33453 33747 41418 41782 43389 45993 48321 62127 62673 66906 67494 86778 91986 94813 96642 101241 107317 124254 125346 130167 137979 144963 146237 188019 189626 199303 202482 214634 260334 275958 284439 289926 292474 303723 321951 376038 398606 413937 434889 438711 564057 568878 597909 607446 643902 663691 827874 853317 869778 877422 904529 911169 965853 1128114 1195818 1232569 1241811 1316133 1327382 1395121 1692171 1706634 1793727 1809058 1822338 1931706 1991073 2465138 2483622 2559951 2632266 2713587 2790242 2897559 3384342 3587454 3697707 3948399 3982146 4185363 5119902 5381181 5427174 5795118 5973219 6331703 7395414 7679853 7896798 8140761 8370726 8627983 8692677 10762362 11093121 11758877 11845197 11946438 12556089 12663406 15359706 16143543 16281522 17255966 17385354 17919657 18995109 22186242 23517754 23690394 24422283 24636917 25112178 25883949 32287086 33279363 35276631 35839314 37668267 37990218 48844566 49273834 51767898 53758971 56985327 66558726 70553262 73266849 73910751 75336534 77651847 82312139 99838089 105829893 107517942 113004801 113970654 146533698 147821502 155303694 164624278 170955981 172458419 199676178 211659786 221732253 226009602 232955541 246936417 317489679 320279921 341911962 344916838 443464506 465911082 493872834 512867943 517375257 634979358 640559842 665196759 698866623 740809251 952469037 960839763 1025735886 1034750514 1330393518 1397733246 1453578103 1481618502 1552125771 1904938074 1921679526 1995590277 2222427753 2241959447 2882519289 2907156206 3104251542 3991180554 4360734309 4444855506 4483918894 4656377313 5765038578 6667283259 6725878341 8647557867 8721468618 9312754626 10175046721 13082202927 13334566518 13451756682 13969131939 17295115734 18896515339 20177635023 20350093442 25942673601 26164405854 27938263878 30525140163 37793030678 39246608781 40355270046 51885347202 56689546017 60532905069 61050280326 78493217562 91575420489 113379092034 117739826343 121065810138 132275607373 170068638051 181598715207 183150840978 235479652686 264551214746 274726261467 340137276102 363197430414 396826822119 510205914153 549452522934 793653644238 824178784401 1020411828306 1190480466357 1530617742459 1648357568802 2380960932714 3061235484918 3571441399071 7142882798142 10714324197213 21428648394426
• Sum of all divisors σ(n): 60139630172160
• Sum of proper divisors (its aliquot sum) s(n): 38710981777734
• 21428648394426 is an abundant number, because the sum of its proper divisors (38710981777734) is greater than itself. Its abundance is 17282333383308

Bases of 21428648394426

• Binary: 100110111110100111110111110011011111010111010₂
• Hexadecimal: 0x137D3EF9BEBA
• Base-36: 7LG6NZDMI

Squares and roots of 21428648394426

• 21428648394426 squared (21428648394426²) is 459186972011935987667869476
• 21428648394426 cubed (21428648394426³) is 9839756170544908701046979783035533940776
• The square root of 21428648394426 is 4629108.8121177277
• The cube root of 21428648394426 is 27775.6944686681

Scales and comparisons

• 21,428,648,394,426 seconds is equal to 681,364 years, 38 weeks, 1 day, 19 hours, 47 minutes, 6 seconds.
• To count from 1 to 21,428,648,394,426 would take you about one million, seven hundred three thousand, four hundred eleven 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 21428648394426 cubic inches would be around 2314.6 feet tall.

Recreational maths with 21428648394426

• 21428648394426 backwards is 62449384682412
• 21428648394426 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21428648394426's digits is 63
• More coming soon!