1221389634682399

Names of 1221389634682399

• Cardinal: 1221389634682399 can be written as One quadrillion, two hundred twenty-one trillion, three hundred eighty-nine billion, six hundred thirty-four million, six hundred eighty-two thousand, three hundred ninety-nine.

Scientific notation

• Scientific notation: 1.221389634682399 × 10¹⁵

Factors of 1221389634682399

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 239

Divisors of 1221389634682399

• Number of divisors d(n): 216
• Complete list of divisors:
  1 7 13 43 49 73 91 103 169 301 511 559 637 721 949 1183 1339 1849 2107 3139 3577 3913 4429 5047 6643 7267 7519 8281 9373 10609 12337 12943 17407 21973 24037 27391 31003 40807 46501 50869 52633 57577 65611 74263 86359 90601 97747 121849 134977 137917 153811 168259 190447 217021 285649 312481 323317 356083 368431 403039 456187 519841 530491 604513 684229 748501 774457 852943 944839 965419 1092727 1177813 1270711 1333129 1754701 1792921 1999543 2187367 2263219 2475811 2821273 3193309 3713437 4203121 4789603 5239507 5421199 5930431 6613873 6757933 7649089 8894977 9331903 10067941 12282907 12550447 13902631 14205451 15311569 15842533 17330677 19616041 22353163 22811113 25994059 29421847 32185543 33301651 36676549 37948393 41513017 46987261 53543623 54640573 62264839 70475587 77095603 79769071 85980349 87853129 97318417 99438157 121314739 130883233 137312287 159677791 180734203 184670863 205952929 225298801 233111557 255008533 290591119 328910827 382484011 432921463 493329109 539669221 558383497 610834393 681228919 696067099 916182631 961186009 1036997923 1117744537 1265139421 1292696041 1431970993 1577091607 1631780899 1785059731 2020452223 2302375789 2349544639 2677388077 3030450241 3315110929 3430070053 3777684547 3908684479 4275840751 5627979019 6413278417 7258985461 7940847109 8855975947 9048872287 10023796951 12495418117 13480972999 14143165561 16446812473 18615622909 21213151687 23205776503 24010490371 26265878899 29930885257 39395853133 44590910689 50812898227 55585929763 70166578657 94366810993 99002158927 115127687311 130309360363 147493012279 162440435521 168073432597 183861152293 242003097817 275770971931 312136374823 341456425687 389101508341 579681838957 660567676951 912165522541 1032451085953 1287028066051 1694021684719 1917409159627 2184954623761 2390194979809 4057772872699 7227157601671 11858151793033 13421864117389 16731364858663 24926319075151 28404410108893 93953048821723 174484233526057 1221389634682399
• Sum of all divisors σ(n): 1612341388176480
• Sum of proper divisors (its aliquot sum) s(n): 390951753494081
• 1221389634682399 is a deficient number, because the sum of its proper divisors (390951753494081) is less than itself. Its deficiency is 830437881188318

Bases of 1221389634682399

• Binary: 100010101101101100011101111010011101011111000011111₂
• Hexadecimal: 0x456D8EF4EBE1F
• Base-36: C0Y2NH56OV

Squares and roots of 1221389634682399

• 1221389634682399 squared (1221389634682399²) is 1491792639709604086169600395201
• 1221389634682399 cubed (1221389634682399³) is 1822060067236805006636786807418853886518767199
• The square root of 1221389634682399 is 34948385.2943508535
• The cube root of 1221389634682399 is 106893.5277294335

Scales and comparisons

• 1,221,389,634,682,399 seconds is equal to 38,836,412 years, 19 weeks, 4 days, 2 hours, 53 minutes, 19 seconds.
• To count from 1 to 1,221,389,634,682,399 would take you about one hundred sixteen million, five hundred nine thousand, two hundred thirty-seven 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 1221389634682399 cubic inches would be around 8907.8 feet tall.

Recreational maths with 1221389634682399

• 1221389634682399 backwards is 9932864369831221
• The number of decimal digits it has is: 16
• The sum of 1221389634682399's digits is 76
• More coming soon!