1388166968770561

Names of 1388166968770561

• Cardinal: 1388166968770561 can be written as One quadrillion, three hundred eighty-eight trillion, one hundred sixty-six billion, nine hundred sixty-eight million, seven hundred seventy thousand, five hundred sixty-one.

Scientific notation

• Scientific notation: 1.388166968770561 × 10¹⁵

Factors of 1388166968770561

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 41615448

Divisors of 1388166968770561

• Number of divisors d(n): 16
• Complete list of divisors:
  1 7 1213 3929 8491 27503 4765877 33361139 41610299 291272093 50473292687 163486864771 353313048809 1144408053397 198309566967223 1388166968770561
• Sum of all divisors σ(n): 1588188588048000
• Sum of proper divisors (its aliquot sum) s(n): 200021619277439
• 1388166968770561 is a deficient number, because the sum of its proper divisors (200021619277439) is less than itself. Its deficiency is 1188145349493122

Bases of 1388166968770561

• Binary: 100111011101000011111001111000100000000000000000001₂
• Hexadecimal: 0x4EE87CF100001
• Base-36: DO2B3NSOW1

Squares and roots of 1388166968770561

• 1388166968770561 squared (1388166968770561²) is 1927007533185647678651860254721
• 1388166968770561 cubed (1388166968770561³) is 2675008206140356770969457038265414345666068481
• The square root of 1388166968770561 is 37258112.7913178259
• The cube root of 1388166968770561 is 111552.8239121595

Scales and comparisons

• 1,388,166,968,770,561 seconds is equal to 44,139,415 years, 37 weeks, 4 days, 17 hours, 36 minutes, 1 second.
• To count from 1 to 1,388,166,968,770,561 would take you about one hundred thirty-two million, four hundred eighteen thousand, two hundred forty-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 1388166968770561 cubic inches would be around 9296.1 feet tall.

Recreational maths with 1388166968770561

• 1388166968770561 backwards is 1650778696618831
• The number of decimal digits it has is: 16
• The sum of 1388166968770561's digits is 82
• More coming soon!