213655440831

Names of 213655440831

• Cardinal: 213655440831 can be written as Two hundred thirteen billion, six hundred fifty-five million, four hundred forty thousand, eight hundred thirty-one.

Scientific notation

• Scientific notation: 2.13655440831 × 10¹¹

Factors of 213655440831

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1913

Divisors of 213655440831

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 21 49 71 109 147 213 327 497 763 1491 1723 2289 3479 5169 5341 7739 10437 11881 12061 16023 23217 35643 36183 54173 83167 84427 122333 162519 187807 249501 253281 366999 379211 563421 582169 843551 856331 1137633 1314649 1746507 2530653 2568993 3943947 5904857 5994317 9202543 13334297 17714571 17982951 20470963 27607629 40002891 41333999 61412889 93340079 124001997 143296741 280020237 429890223 653380553 1003077187 1453438373 1960141659 3009231561 4360315119 10174068611 30522205833 71218480277 213655440831
• Sum of all divisors σ(n): 339359497344
• Sum of proper divisors (its aliquot sum) s(n): 125704056513
• 213655440831 is a deficient number, because the sum of its proper divisors (125704056513) is less than itself. Its deficiency is 87951384318

Bases of 213655440831

• Binary: 11000110111110110110110100110110111111₂
• Hexadecimal: 0x31BEDB4DBF
• Base-36: 2Q5GXL8F

Squares and roots of 213655440831

• 213655440831 squared (213655440831²) is 45648647396688941970561
• 213655440831 cubed (213655440831³) is 9753081882878456426503188279376191
• The square root of 213655440831 is 462228.7754251135
• The cube root of 213655440831 is 5978.2120957789

Scales and comparisons

• 213,655,440,831 seconds is equal to 6,793 years, 30 weeks, 1 day, 21 hours, 33 minutes, 51 seconds.
• To count from 1 to 213,655,440,831 would take you about thirteen thousand, five hundred eighty-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 213655440831 cubic inches would be around 498.2 feet tall.

Recreational maths with 213655440831

• 213655440831 backwards is 138044556312
• The number of decimal digits it has is: 12
• The sum of 213655440831's digits is 42
• More coming soon!