13438695868415999

Names of 13438695868415999

• Cardinal: 13438695868415999 can be written as Thirteen quadrillion, four hundred thirty-eight trillion, six hundred ninety-five billion, eight hundred sixty-eight million, four hundred fifteen thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 1.3438695868415999 × 10¹⁶

Factors of 13438695868415999

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 402795922

Divisors of 13438695868415999

• Number of divisors d(n): 16
• Complete list of divisors:
  1 89 229 1637 20381 145693 374873 33363697 402793967 35848663063 92239818443 659373723979 8209343841427 58684261434131 150996582791191 13438695868415999
• Sum of all divisors σ(n): 13657373955388800
• Sum of proper divisors (its aliquot sum) s(n): 218678086972801
• 13438695868415999 is a deficient number, because the sum of its proper divisors (218678086972801) is less than itself. Its deficiency is 13220017781443198

Bases of 13438695868415999

• Binary: 101111101111100110110000110101011110110011111111111111₂
• Hexadecimal: 0x2FBE6C357B3FFF
• Base-36: 3OBMBNJ7JZZ

Squares and roots of 13438695868415999

• 13438695868415999 squared (13438695868415999²) is 180598546643781241508957319168001
• 13438695868415999 cubed (13438695868415999³) is 2427008942623717052967601162777856972336437247999
• The square root of 13438695868415999 is 115925389.2312464871
• The cube root of 13438695868415999 is 237749.1877265085

Scales and comparisons

• 13,438,695,868,415,999 seconds is equal to 427,308,959 years, 51 weeks, 6 days, 23 hours, 59 minutes, 59 seconds.
• To count from 1 to 13,438,695,868,415,999 would take you about one billion, two hundred eighty-one million, nine hundred twenty-six thousand, eight hundred seventy-nine 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 13438695868415999 cubic inches would be around 19812.4 feet tall.

Recreational maths with 13438695868415999

• 13438695868415999 backwards is 99951486859683431
• The number of decimal digits it has is: 17
• The sum of 13438695868415999's digits is 98
• More coming soon!