231891439221

Names of 231891439221

• Cardinal: 231891439221 can be written as Two hundred thirty-one billion, eight hundred ninety-one million, four hundred thirty-nine thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 2.31891439221 × 10¹¹

Factors of 231891439221

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 13989

Divisors of 231891439221

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 9 13 27 39 89 117 267 351 557 801 1157 1671 2403 3471 5013 7241 10413 13327 15039 21723 31239 39981 49573 65169 119943 148719 173251 195507 359829 446157 519753 644449 1186103 1338471 1559259 1933347 3558309 4677777 5800041 7423139 10674927 15419339 17400123 22269417 32024781 46258017 66808251 96500807 138774051 200424753 289502421 416322153 660659371 868507263 1981978113 2605521789 5945934339 8588571823 17837803017 25765715469 77297146407 231891439221
• Sum of all divisors σ(n): 374826009600
• Sum of proper divisors (its aliquot sum) s(n): 142934570379
• 231891439221 is a deficient number, because the sum of its proper divisors (142934570379) is less than itself. Its deficiency is 88956868842

Bases of 231891439221

• Binary: 11010111111101110011101000111001110101₂
• Hexadecimal: 0x35FDCE8E75
• Base-36: 2YJ26BN9

Squares and roots of 231891439221

• 231891439221 squared (231891439221²) is 53773639583986737086841
• 231891439221 cubed (231891439221³) is 12469646675282020168043296350390861
• The square root of 231891439221 is 481551.0764404955
• The cube root of 231891439221 is 6143.6750733679

Scales and comparisons

• 231,891,439,221 seconds is equal to 7,373 years, 22 weeks, 2 days, 16 hours, 40 minutes, 21 seconds.
• To count from 1 to 231,891,439,221 would take you about fourteen thousand, seven 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 231891439221 cubic inches would be around 512 feet tall.

Recreational maths with 231891439221

• 231891439221 backwards is 122934198132
• The number of decimal digits it has is: 12
• The sum of 231891439221's digits is 45
• More coming soon!