21307731945909124

Names of 21307731945909124

• Cardinal: 21307731945909124 can be written as Twenty-one quadrillion, three hundred seven trillion, seven hundred thirty-one billion, nine hundred forty-five million, nine hundred nine thousand, one hundred twenty-four.

Scientific notation

• Scientific notation: 2.1307731945909124 × 10¹⁶

Factors of 21307731945909124

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 23312

Divisors of 21307731945909124

• Number of divisors d(n): 18
• Complete list of divisors:
  1 2 4 3727 7454 14908 19583 39166 78332 72985841 145971682 291943364 383493889 766987778 1533975556 1429281724303 2858563448606 5717126897212
• Sum of all divisors σ(n): 21312022986603320
• Sum of proper divisors (its aliquot sum) s(n): 4291040694196
• 21307731945909124 is a deficient number, because the sum of its proper divisors (4291040694196) is less than itself. Its deficiency is 21303440905214928

Bases of 21307731945909124

• Binary: 1001011101100110100010011110001100110101110101110000100₂
• Hexadecimal: 0x4BB344F19AEB84
• Base-36: 5TSYKX79B44

Squares and roots of 21307731945909124

• 21307731945909124 squared (21307731945909124²) is 454019440678716224019358866447376
• 21307731945909124 cubed (21307731945909124³) is 9674124540213674138114666425465117866726424258624
• 21307731945909124 is a perfect square number. Its square root is 145971682
• The cube root of 21307731945909124 is 277233.5215144003

Scales and comparisons

• 21,307,731,945,909,124 seconds is equal to 677,519,966 years, 38 weeks, 2 days, 11 hours, 12 minutes, 4 seconds.
• To count from 1 to 21,307,731,945,909,124 would take you about two billion, thirty-two million, five hundred fifty-nine thousand, nine hundred 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 21307731945909124 cubic inches would be around 23102.8 feet tall.

Recreational maths with 21307731945909124

• 21307731945909124 backwards is 42190954913770312
• The number of decimal digits it has is: 17
• The sum of 21307731945909124's digits is 67
• More coming soon!