398399742449798399

Names of 398399742449798399

• Cardinal: 398399742449798399 can be written as Three hundred ninety-eight quadrillion, three hundred ninety-nine trillion, seven hundred forty-two billion, four hundred forty-nine million, seven hundred ninety-eight thousand, three hundred ninety-nine.

Scientific notation

• Scientific notation: 3.98399742449798399 × 10¹⁷

Factors of 398399742449798399

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 8664559320

Divisors of 398399742449798399

• Number of divisors d(n): 4
• Complete list of divisors:
  1 46227011 8618332309 398399742449798399
• Sum of all divisors σ(n): 398399751114357720
• Sum of proper divisors (its aliquot sum) s(n): 8664559321
• 398399742449798399 is a deficient number, because the sum of its proper divisors (8664559321) is less than itself. Its deficiency is 398399733785239078

Bases of 398399742449798399

• Binary: 10110000111011001100111010001110111010100111100110011111111₂
• Hexadecimal: 0x58766747753CCFF
• Base-36: 30YSX71233ZZ

Squares and roots of 398399742449798399

• 398399742449798399 squared (398399742449798399²) is 158722354784065696429544715742963201
• 398399742449798399 cubed (398399742449798399³) is 63234945266997300235963676894289107033989085325715199
• The square root of 398399742449798399 is 631189149.5025864267
• The cube root of 398399742449798399 is 735822.4199716291

Scales and comparisons

• 398,399,742,449,798,399 seconds is equal to 12,667,879,478 years, 30 weeks, 3 days, 23 hours, 59 minutes, 59 seconds.
• To count from 1 to 398,399,742,449,798,399 would take you about thirty-eight billion, three million, six hundred thirty-eight thousand, four hundred thirty-five 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 398399742449798399 cubic inches would be around 61318.5 feet tall.

Recreational maths with 398399742449798399

• 398399742449798399 backwards is 993897944247993893
• The number of decimal digits it has is: 18
• The sum of 398399742449798399's digits is 116
• More coming soon!