21398215809555

Names of 21398215809555

• Cardinal: 21398215809555 can be written as Twenty-one trillion, three hundred ninety-eight billion, two hundred fifteen million, eight hundred nine thousand, five hundred fifty-five.

Scientific notation

• Scientific notation: 2.1398215809555 × 10¹³

Factors of 21398215809555

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2229

Divisors of 21398215809555

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 9 13 15 27 37 39 45 53 65 111 117 135 159 169 185 195 257 265 333 351 477 481 507 555 585 689 771 795 845 999 1285 1431 1443 1521 1665 1755 1861 1961 2067 2313 2385 2405 2535 3341 3445 3855 4329 4563 4995 5583 5883 6201 6253 6939 7155 7215 7605 8957 9305 9509 9805 10023 10335 11565 12987 13621 16705 16749 17649 18603 18759 21645 22815 24193 25493 26871 27915 28527 29415 30069 31005 31265 34695 40863 43433 44785 47545 50115 50247 52947 56277 64935 68105 68857 72579 76479 80613 83745 85581 88245 90207 93015 93795 98633 120965 122589 123617 127465 130299 134355 142635 150345 168831 177073 204315 206571 217165 217737 229437 241839 251235 256743 264735 281385 295899 314509 331409 344285 362895 367767 370851 382395 390897 403065 427905 451035 478277 493165 503977 531219 612945 618085 619713 651495 653211 688311 844155 885365 887697 895141 943527 994227 1032855 1088685 1112553 1147185 1172691 1209195 1282229 1283715 1434831 1479495 1511931 1572545 1593657 1607021 1657045 1838835 1854255 1859139 1954485 2301949 2391385 2519885 2656095 2663091 2685423 2830581 2982681 3098565 3266055 3337659 3441555 3649421 3846687 4304493 4438485 4475705 4535793 4717635 4780971 4821063 4971135 5562765 5863455 6217601 6411145 6551701 6905847 7174155 7559655 7968285 8035105 8056269 8491743 8948043 9295695 10948263 11509745 11540061 11636833 12913479 13315455 13427115 13607379 14152905 14463189 14913405 16668977 16688295 17696249 18247105 18652803 19233435 19655103 20717541 21522465 22678965 23904855 24105315 24168807 25348681 31088005 32758505 32844789 34529235 34620183 34910499 40281345 42458715 43389567 44740215 47442473 50006931 53088747 54741315 55958409 57700305 58184165 58965309 62152623 64567395 68036895 72315945 76046043 80828813 83344885 85172113 88481245 93264015 98275515 98534367 103587705 104731497 120844035 126743405 142327419 150020793 159266241 164223945 167875227 173100915 174552495 176895927 216947835 228138129 230051237 237212365 242486439 250034655 255516339 265443735 279792045 294826545 310763115 314194491 329532853 380230215 404144065 425860565 426982257 450062379 477798723 492671835 523657485 616752149 684414387 690153711 711637095 727459317 750103965 766549017 796331205 839376135 884479635 937901197 988598559 1140690645 1150256185 1212432195 1277581695 1280946771 1570972455 1647664265 1850256447 2070461133 2134911285 2182377951 2250311895 2299647051 2388993615 2813703591 2965795677 2990666081 3083760745 3422071935 3450768555 3637296585 3832745085 4283927089 4689505985 4942992795 5550769341 6211383399 6404733855 8441110773 8897387031 8971998243 9251282235 10352305665 10911889755 11498235255 12192715561 12851781267 14068517955 14828978385 14953330405 16652308023 21419635445 25323332319 26915994729 27753846705 31056916995 36578146683 38555343801 42205553865 44486935155 44859991215 60963577805 64258906335 80747984187 83261540115 109734440049 115666031403 126616661595 134579973645 158505302293 182890733415 192776719005 329203320147 403739920935 475515906879 548672200245 578330157015 792526511465 1426547720637 1646016600735 2377579534395 4279643161911 7132738603185 21398215809555
• Sum of all divisors σ(n): 43295132240640
• Sum of proper divisors (its aliquot sum) s(n): 21896916431085
• 21398215809555 is an abundant number, because the sum of its proper divisors (21896916431085) is greater than itself. Its abundance is 498700621530

Bases of 21398215809555

• Binary: 100110111011000101001000011010101101000010011₂
• Hexadecimal: 0x1376290D5A13
• Base-36: 7L27D7GUR

Squares and roots of 21398215809555

• 21398215809555 squared (21398215809555²) is 457883639832289544029298025
• 21398215809555 cubed (21398215809555³) is 9797892940795885649820047254663737628875
• The square root of 21398215809555 is 4625820.5552696271
• The cube root of 21398215809555 is 27762.5393902705

Scales and comparisons

• 21,398,215,809,555 seconds is equal to 680,397 years, 3 weeks, 5 days, 19 hours, 59 minutes, 15 seconds.
• To count from 1 to 21,398,215,809,555 would take you about one million, seven hundred thousand, nine hundred ninety-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 21398215809555 cubic inches would be around 2313.5 feet tall.

Recreational maths with 21398215809555

• 21398215809555 backwards is 55590851289312
• The number of decimal digits it has is: 14
• The sum of 21398215809555's digits is 63
• More coming soon!