1388198394856511

Names of 1388198394856511

• Cardinal: 1388198394856511 can be written as One quadrillion, three hundred eighty-eight trillion, one hundred ninety-eight billion, three hundred ninety-four million, eight hundred fifty-six thousand, five hundred eleven.

Scientific notation

• Scientific notation: 1.388198394856511 × 10¹⁵

Factors of 1388198394856511

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 28686541

Divisors of 1388198394856511

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 11620171 17066363 81341197 119464541 198314056408073 1388198394856511
• Sum of all divisors σ(n): 1586512680756864
• Sum of proper divisors (its aliquot sum) s(n): 198314285900353
• 1388198394856511 is a deficient number, because the sum of its proper divisors (198314285900353) is less than itself. Its deficiency is 1189884108956158

Bases of 1388198394856511

• Binary: 100111011101000111100100000001101000000010000111111₂
• Hexadecimal: 0x4EE8F2034043F
• Base-36: DO2PJE2RZZ

Squares and roots of 1388198394856511

• 1388198394856511 squared (1388198394856511²) is 1927094783482193626020279093121
• 1388198394856511 cubed (1388198394856511³) is 2675189885166336799333505193318603914002160831
• The square root of 1388198394856511 is 37258534.5237371219
• The cube root of 1388198394856511 is 111553.6657038307

Scales and comparisons

• 1,388,198,394,856,511 seconds is equal to 44,140,414 years, 50 weeks, 5 days, 13 hours, 55 minutes, 11 seconds.
• To count from 1 to 1,388,198,394,856,511 would take you about one hundred thirty-two million, four hundred twenty-one thousand, two hundred forty-four 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 1388198394856511 cubic inches would be around 9296.1 feet tall.

Recreational maths with 1388198394856511

• 1388198394856511 backwards is 1156584938918831
• The number of decimal digits it has is: 16
• The sum of 1388198394856511's digits is 80
• More coming soon!