21288430164736

Names of 21288430164736

• Cardinal: 21288430164736 can be written as Twenty-one trillion, two hundred eighty-eight billion, four hundred thirty million, one hundred sixty-four thousand, seven hundred thirty-six.

Scientific notation

• Scientific notation: 2.1288430164736 × 10¹³

Factors of 21288430164736

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 460958

Divisors of 21288430164736

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 7 8 14 16 28 29 32 49 56 58 64 98 112 116 127 128 196 203 224 232 254 256 392 406 448 464 508 784 812 889 896 928 1016 1421 1568 1624 1778 1792 1856 2032 2842 3136 3248 3556 3683 3712 4064 5684 6223 6272 6496 7112 7366 7424 8128 11368 12446 12544 12992 14224 14732 16256 22736 24892 25781 25984 28448 29464 32512 45472 49784 51562 51968 56896 58928 90944 99568 103124 113792 117856 180467 181888 199136 206248 227584 235712 360934 363776 398272 412496 460793 471424 721868 796544 824992 921586 942848 1443736 1593088 1649984 1843172 2887472 3225551 3299968 3686344 5774944 6451102 6599936 7372688 11549888 12902204 13362997 14745376 22578857 23099776 25804408 26725994 29490752 45157714 46199552 51608816 53451988 58520711 58981504 90315428 93540979 103217632 106903976 117041422 117963008 180630856 187081958 206435264 213807952 234082844 361261712 374163916 409644977 412870528 427615904 468165688 654786853 722523424 748327832 819289954 825741056 855231808 936331376 1309573706 1445046848 1496655664 1638579908 1697100619 1710463616 1872662752 2619147412 2867514839 2890093696 2993311328 3277159816 3394201238 3420927232 3745325504 5238294824 5735029678 5780187392 5986622656 6554319632 6788402476 7490651008 10476589648 11470059356 11879704333 11973245312 13108639264 13576804952 14981302016 20953179296 22940118712 23759408666 23946490624 26217278528 27153609904 41906358592 45880237424 47518817332 52434557056 54307219808 83157930331 83812717184 91760474848 95037634664 104869114112 108614439616 166315860662 167625434368 183520949696 190075269328 217228879232 332631721324 367041899392 380150538656 434457758464 665263442648 734083798784 760301077312 1330526885296 1520602154624 2661053770592 3041204309248 5322107541184 10644215082368 21288430164736
• Sum of all divisors σ(n): 51538739857920
• Sum of proper divisors (its aliquot sum) s(n): 30250309693184
• 21288430164736 is an abundant number, because the sum of its proper divisors (30250309693184) is greater than itself. Its abundance is 8961879528448

Bases of 21288430164736

• Binary: 100110101110010011001010100010101101100000000₂
• Hexadecimal: 0x135C99515B00
• Base-36: 7JNRPO35S

Squares and roots of 21288430164736

• 21288430164736 squared (21288430164736²) is 453197258878841636097949696
• 21288430164736 cubed (21288430164736³) is 9647858196492002289821531011049121120256
• The square root of 21288430164736 is 4613938.6823771293
• The cube root of 21288430164736 is 27714.9784816181

Scales and comparisons

• 21,288,430,164,736 seconds is equal to 676,906 years, 11 weeks, 6 days, 15 hours, 32 minutes, 16 seconds.
• To count from 1 to 21,288,430,164,736 would take you about one million, six hundred ninety-two thousand, two hundred sixty-five 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 21288430164736 cubic inches would be around 2309.6 feet tall.

Recreational maths with 21288430164736

• 21288430164736 backwards is 63746103488212
• The number of decimal digits it has is: 14
• The sum of 21288430164736's digits is 55
• More coming soon!