221531603490330721

Names of 221531603490330721

• Cardinal: 221531603490330721 can be written as Two hundred twenty-one quadrillion, five hundred thirty-one trillion, six hundred three billion, four hundred ninety million, three hundred thirty thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 2.21531603490330721 × 10¹⁷

Factors of 221531603490330721

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 9829

Divisors of 221531603490330721

• Number of divisors d(n): 63
• Complete list of divisors:
  1 7 19 49 133 361 931 2527 6859 9803 17689 48013 68621 130321 186257 336091 480347 912247 1303799 2476099 3538883 6385729 9126593 17332693 24772181 47045881 67238777 96098809 121328851 173405267 329321167 470671439 672691663 1277536763 1825877371 2305248169 3294700073 4708841641 8942757341 12781141597 24273198497 34691670049 62599301387 89467991179 169912389479 242841690343 461190771443 659141730931 1189386726353 1699891832401 3228335400101 4613992116517 12523692887689 22598347800707 32297944815619 87665850213823 237950164866091 613660951496761 1665651154062637 4521053132455729 11659558078438459 31647371927190103 221531603490330721
• Sum of all divisors σ(n): 272044447640418081
• Sum of proper divisors (its aliquot sum) s(n): 50512844150087360
• 221531603490330721 is a deficient number, because the sum of its proper divisors (50512844150087360) is less than itself. Its deficiency is 171018759340243361

Bases of 221531603490330721

• Binary: 1100010011000010011101000111010100100100000101100001100001₂
• Hexadecimal: 0x31309D1D4905861
• Base-36: 1OLAEDOTN2AP

Squares and roots of 221531603490330721

• 221531603490330721 squared (221531603490330721²) is 49076251344997110486975741956379841
• 221531603490330721 cubed (221531603490330721³) is 10871940653751709622517499665706658916596800987395361
• 221531603490330721 is a perfect square number. Its square root is 470671439
• The cube root of 221531603490330721 is 605078.7443804957

Scales and comparisons

• 221,531,603,490,330,721 seconds is equal to 7,044,019,748 years, 39 weeks, 11 hours, 52 minutes, 1 second.
• To count from 1 to 221,531,603,490,330,721 would take you about twenty-one billion, one hundred thirty-two million, fifty-nine thousand, two hundred forty-six 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 221531603490330721 cubic inches would be around 50423.2 feet tall.

Recreational maths with 221531603490330721

• 221531603490330721 backwards is 127033094306135122
• The number of decimal digits it has is: 18
• The sum of 221531603490330721's digits is 52
• More coming soon!