400839178789169864129

Names of 400839178789169864129

• Cardinal: 400839178789169864129 can be written as Four hundred quintillion, eight hundred thirty-nine quadrillion, one hundred seventy-eight trillion, seven hundred eighty-nine billion, one hundred sixty-nine million, eight hundred sixty-four thousand, one hundred twenty-nine.

Scientific notation

• Scientific notation: 4.00839178789169864129 × 10²⁰

Factors of 400839178789169864129

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 160775000

Divisors of 400839178789169864129

• Number of divisors d(n): 16
• Complete list of divisors:
  1 151 2347 354397 7373213 153399289 1113355163 17304930911 23163292639 360028131283 2613044567561 54364247823733 1131045631845557 170787890408679107 2654564097941522279 400839178789169864129
• Sum of all divisors σ(n): 403665719202215141760
• Sum of proper divisors (its aliquot sum) s(n): 2826540413045277631
• 400839178789169864129 is a deficient number, because the sum of its proper divisors (2826540413045277631) is less than itself. Its deficiency is 398012638376124586498

Bases of 400839178789169864129

• Binary: 101011011101011000010110101010101111100101011110000110001110111000001₂
• Hexadecimal: 0x15BAC2D55F2BC31DC1
• Base-36: 2CLDZ23OS8DWHT

Squares and roots of 400839178789169864129

• 400839178789169864129 squared (400839178789169864129²) is 160672047252376083902469166373384320928641
• 400839178789169864129 cubed (400839178789169864129³) is 64403651475017125717810674725173308393620255326252549074618689
• The square root of 400839178789169864129 is 20020968477.8027125321
• The cube root of 400839178789169864129 is 7373212.0000000011

Scales and comparisons

• 400,839,178,789,169,864,129 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 400,839,178,789,169,864,129 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 400839178789169864129 cubic inches would be around 614434.3 feet tall.

Recreational maths with 400839178789169864129

• 400839178789169864129 backwards is 921468961987871938004
• The number of decimal digits it has is: 21
• The sum of 400839178789169864129's digits is 110
• More coming soon!