21210861242667213

Names of 21210861242667213

• Cardinal: 21210861242667213 can be written as Twenty-one quadrillion, two hundred ten trillion, eight hundred sixty-one billion, two hundred forty-two million, six hundred sixty-seven thousand, two hundred thirteen.

Scientific notation

• Scientific notation: 2.1210861242667213 × 10¹⁶

Factors of 21210861242667213

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 3953

Divisors of 21210861242667213

• Number of divisors d(n): 264
• Complete list of divisors:
  1 3 9 13 27 39 81 117 151 243 351 353 453 729 1053 1059 1359 1963 2187 3159 3177 3433 4077 4589 5889 6561 9477 9531 10299 12231 13767 17667 19683 22801 28431 28593 30897 36693 41301 44629 53001 53303 59049 68403 85293 85779 92691 110079 123903 133887 159003 159909 205209 255879 257337 278073 296413 330237 371709 401661 477009 479727 518383 615627 692939 767637 772011 834219 889239 990711 1115127 1204983 1211849 1431027 1439181 1555149 1846881 2078817 2316033 2502657 2667717 2972133 3345381 3614949 3635547 4293081 4317543 4665447 5540643 6236451 6738979 6948099 7507971 8003151 8048753 8916399 10036143 10844847 10906641 12879243 12952629 13996341 15754037 16621929 18709353 20216937 20844297 22523913 24009453 24146259 30108429 32534541 32719923 38637729 38857887 41989023 47262111 49865787 56128059 60650811 67571739 72028359 72438777 78275833 90325287 97603623 98159769 104633789 115913187 116573661 125967069 141786333 149597361 168384177 181952433 182989199 202715217 216085077 217316331 234827499 270975861 292810869 294479307 313901367 349720983 377901207 425358999 448792083 505152531 545857299 548967597 648255231 651948993 704482497 878432607 883437921 941704101 1017585829 1049162949 1133703621 1276076997 1346376249 1515457593 1637571897 1646902791 1944765693 1955846979 2113447491 2378859587 2635297821 2650313763 2825112303 3052757487 3147488847 3401110863 3828230991 4546372779 4912715691 4940708373 5834297079 5867540937 6340342473 7136578761 7950941289 8475336909 9158272461 10203332589 11484692973 13639118337 14738147073 14822125119 17502891237 17602622811 19021027419 21409736283 23852823867 25426010727 27474817383 27631369049 30609997767 34454078919 40917355011 44214441219 44466375357 52807868433 57063082257 64229208849 71558471601 76278032181 82424452149 82894107147 103362236757 132643323657 133399126071 158423605299 171189246771 192687626547 228834096543 247273356447 248682321441 310086710271 359207797637 397929970971 400197378213 475270815897 513567740313 578062879641 686502289629 741820069341 746046964323 930260130813 1077623392911 1200592134639 1540703220939 1734188638923 2059506868887 2225460208023 2238140892969 3232870178733 3601776403917 4622109662817 5202565916769 6178520606661 6676380624069 6714422678907 9698610536199 10805329211751 15607697750307 20029141872207 20143268036721 29095831608597 46823093250921 60087425616621 60429804110163 87287494825791 140469279752763 181289412330489 261862484477373 543868236991467 785587453432119 1631604710974401 2356762360296357 7070287080889071 21210861242667213
• Sum of all divisors σ(n): 34599705308768376
• Sum of proper divisors (its aliquot sum) s(n): 13388844066101163
• 21210861242667213 is a deficient number, because the sum of its proper divisors (13388844066101163) is less than itself. Its deficiency is 7822017176566050

Bases of 21210861242667213

• Binary: 1001011010110110010101001111001101111111101000011001101₂
• Hexadecimal: 0x4B5B2A79BFD0CD
• Base-36: 5SUMF4VOBT9

Squares and roots of 21210861242667213

• 21210861242667213 squared (21210861242667213²) is 449900634655682107288162265187369
• 21210861242667213 cubed (21210861242667213³) is 9542779934669589176701888341919747599494758032597
• The square root of 21210861242667213 is 145639490.6701723295
• The cube root of 21210861242667213 is 276812.7570820527

Scales and comparisons

• 21,210,861,242,667,213 seconds is equal to 674,439,778 years, 5 days, 12 hours, 53 minutes, 33 seconds.
• To count from 1 to 21,210,861,242,667,213 would take you about two billion, twenty-three million, three hundred nineteen thousand, three hundred thirty-four 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 21210861242667213 cubic inches would be around 23067.7 feet tall.

Recreational maths with 21210861242667213

• 21210861242667213 backwards is 31276624216801212
• The number of decimal digits it has is: 17
• The sum of 21210861242667213's digits is 54
• More coming soon!