21011378289489

Names of 21011378289489

• Cardinal: 21011378289489 can be written as Twenty-one trillion, eleven billion, three hundred seventy-eight million, two hundred eighty-nine thousand, four hundred eighty-nine.

Scientific notation

• Scientific notation: 2.1011378289489 × 10¹³

Factors of 21011378289489

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 396

Divisors of 21011378289489

• Number of divisors d(n): 189
• Complete list of divisors:
  1 3 7 9 21 27 49 63 79 81 147 189 237 243 307 441 553 567 711 729 921 1323 1659 1701 2133 2149 2763 3871 3969 4977 5103 6241 6399 6447 8289 11613 11907 14931 15043 18723 19197 19341 24253 24867 34839 35721 43687 44793 45129 56169 57591 58023 72759 74601 94249 104517 131061 134379 135387 168507 169771 174069 218277 223803 282747 305809 313551 393183 403137 406161 505521 509313 522207 654831 659743 848241 917427 940653 1179549 1188397 1218483 1516563 1527939 1566621 1915987 1964493 1979229 2544723 2752281 2821959 3538647 3565191 3655449 4549689 4583817 4618201 5747961 5893479 5937687 7445671 7634169 8256843 10615941 10695573 10966347 13411909 13751451 13854603 17243883 17680437 17813061 22337013 22902507 24770529 31847823 32086719 40235727 41254353 41563809 51731649 52119697 53439183 67011039 68707521 74311587 93883363 96260157 120707181 123763059 124691427 155194947 156359091 160317549 201033117 222934761 281650089 288780471 362121543 364837879 374074281 465584841 469077273 480952647 588208009 603099351 844950267 866341413 1086364629 1094513637 1122222843 1396754523 1407231819 1764624027 1809298053 2534850801 3259093887 3283540911 3366668529 4117456063 4221695457 5293872081 5427894159 7604552403 9777281661 9850622733 12352368189 12665086371 15881616243 22813657209 28822192441 29551868199 37057104567 37995259113 47644848729 68440971627 86466577323 88655604597 111171313701 142934546187 259399731969 265966813791 333513941103 428803638561 778199195907 1000541823309 2334597587721 3001625469927 7003792763163 21011378289489
• Sum of all divisors σ(n): 37236983547897
• Sum of proper divisors (its aliquot sum) s(n): 16225605258408
• 21011378289489 is a deficient number, because the sum of its proper divisors (16225605258408) is less than itself. Its deficiency is 4785773031081

Bases of 21011378289489

• Binary: 100110001110000010111101111010011101101010001₂
• Hexadecimal: 0x131C17BD3B51
• Base-36: 7G4HS4W29

Squares and roots of 21011378289489

• 21011378289489 squared (21011378289489²) is 441478017624009695487881121
• 21011378289489 cubed (21011378289489³) is 9276061634791759431517707389485955837169
• 21011378289489 is a perfect square number. Its square root is 4583817
• The cube root of 21011378289489 is 27594.2236955657

Scales and comparisons

• 21,011,378,289,489 seconds is equal to 668,096 years, 43 weeks, 3 days, 17 hours, 18 minutes, 9 seconds.
• To count from 1 to 21,011,378,289,489 would take you about one million, six hundred seventy thousand, two hundred forty-two 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 21011378289489 cubic inches would be around 2299.5 feet tall.

Recreational maths with 21011378289489

• 21011378289489 backwards is 98498287311012
• 21011378289489 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21011378289489's digits is 63
• More coming soon!