21405809589948

Names of 21405809589948

• Cardinal: 21405809589948 can be written as Twenty-one trillion, four hundred five billion, eight hundred nine million, five hundred eighty-nine thousand, nine hundred forty-eight.

Scientific notation

• Scientific notation: 2.1405809589948 × 10¹³

Factors of 21405809589948

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2055

Divisors of 21405809589948

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 23 28 36 41 42 46 63 69 82 84 92 123 126 138 161 164 207 246 252 276 287 322 369 414 483 492 529 574 644 738 828 861 943 966 1058 1148 1449 1476 1587 1722 1886 1932 1979 2116 2583 2829 2898 3174 3444 3703 3772 3958 4761 5166 5658 5796 5937 6348 6601 7406 7916 8487 9522 10332 11109 11316 11874 13202 13853 14812 16974 17811 19044 19803 21689 22218 23748 26404 27706 33327 33948 35622 39606 41559 43378 44436 45517 55412 59409 65067 66654 71244 79212 81139 83118 86756 91034 118818 124677 130134 133308 136551 151823 162278 166236 182068 195201 237636 243417 249354 260268 273102 303646 318619 324556 390402 409653 455469 486834 498708 546204 567973 607292 637238 730251 780804 819306 910938 955857 973668 1046891 1135946 1274476 1366407 1460502 1638612 1703919 1821876 1866197 1911714 2093782 2271892 2732814 2867571 2921004 3140673 3407838 3732394 3823428 3916441 4187564 5111757 5465628 5598591 5735142 6281346 6815676 7328237 7464788 7832882 9422019 10223514 11197182 11470284 11749323 12562692 13063379 14656474 15665764 16795773 18844038 20447028 21984711 22394364 23498646 26126758 27415087 29312948 33591546 35247969 37688076 39190137 42922531 43969422 46997292 52253516 54830174 65954133 67183092 70495938 78380274 82245261 85845062 87938844 90078143 109660348 117570411 128767593 131908266 140991876 156760548 160574081 164490522 171690124 180156286 235140822 246735783 257535186 263816532 270234429 300457717 321148162 328981044 360312572 386302779 470281644 481722243 493471566 515070372 540468858 600915434 630547001 642296324 772605558 810703287 901373151 963444486 986943132 1080937716 1124018567 1201830868 1261094002 1445166729 1545211116 1621406574 1802746302 1891641003 1926888972 2071797289 2248037134 2522188004 2704119453 2890333458 3242813148 3372055701 3605492604 3693203863 3783282006 4143594578 4496074268 5408238906 5674923009 5780666916 6215391867 6744111402 7386407726 7566564012 8287189156 10116167103 10816477812 11079611589 11349846018 12430783734 13488222804 14502581023 14772815452 18646175601 20232334206 22159223178 22699692036 24861567468 25852427041 29005162046 33238834767 37292351202 40464668412 43507743069 44318446356 51704854082 58010324092 66477669534 74584702404 77557281123 84943688849 87015486138 103409708164 130523229207 132955339068 155114562246 169887377698 174030972276 232671843369 254831066547 261046458414 310229124492 339774755396 465343686738 509662133094 522092916828 594605821943 764493199641 930687373476 1019324266188 1189211643886 1528986399282 1783817465829 2378423287772 3057972798564 3567634931658 5351452397487 7135269863316 10702904794974 21405809589948
• Sum of all divisors σ(n): 66254731194288
• Sum of proper divisors (its aliquot sum) s(n): 44848921604340
• 21405809589948 is an abundant number, because the sum of its proper divisors (44848921604340) is greater than itself. Its abundance is 23443112014392

Bases of 21405809589948

• Binary: 100110111011111101101101011010011111010111100₂
• Hexadecimal: 0x1377EDAD3EBC
• Base-36: 7L5OYCJB0

Squares and roots of 21405809589948

• 21405809589948 squared (21405809589948²) is 458208684201109763902642704
• 21405809589948 cubed (21405809589948³) is 9808327846469570021211367311903793939392
• The square root of 21405809589948 is 4626641.2860678965
• The cube root of 21405809589948 is 27765.8231172133

Scales and comparisons

• 21,405,809,589,948 seconds is equal to 680,638 years, 27 weeks, 4 days, 19 hours, 25 minutes, 48 seconds.
• To count from 1 to 21,405,809,589,948 would take you about one million, seven hundred one thousand, five hundred ninety-six 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 21405809589948 cubic inches would be around 2313.8 feet tall.

Recreational maths with 21405809589948

• 21405809589948 backwards is 84998590850412
• The number of decimal digits it has is: 14
• The sum of 21405809589948's digits is 72
• More coming soon!