142668515891689238

Names of 142668515891689238

• Cardinal: 142668515891689238 can be written as One hundred forty-two quadrillion, six hundred sixty-eight trillion, five hundred fifteen billion, eight hundred ninety-one million, six hundred eighty-nine thousand, two hundred thirty-eight.

Scientific notation

• Scientific notation: 1.42668515891689238 × 10¹⁷

Factors of 142668515891689238

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 3528577

Divisors of 142668515891689238

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 11 22 521 1042 5731 11462 3528043 7056086 38808473 77616946 1838110403 3676220806 20219214433 40438428866 12447087409849 24894174819698 136917961508339 273835923016678 6484932540531329 12969865081062658 71334257945844619 142668515891689238
• Sum of all divisors σ(n): 233905732904885256
• Sum of proper divisors (its aliquot sum) s(n): 91237217013196018
• 142668515891689238 is a deficient number, because the sum of its proper divisors (91237217013196018) is less than itself. Its deficiency is 51431298878493220

Bases of 142668515891689238

• Binary: 111111010110111000100001001100010010110110011011100010110₂
• Hexadecimal: 0x1FADC42625B3716
• Base-36: 130RRNE9ZOD2

Squares and roots of 142668515891689238

• 142668515891689238 squared (142668515891689238²) is 20354305426737184648992837165020644
• 142668515891689238 cubed (142668515891689238³) is 2903918547238750525139149329896025662958998302629272
• The square root of 142668515891689238 is 377714860.5650686309
• The cube root of 142668515891689238 is 522527.7759908825

Scales and comparisons

• 142,668,515,891,689,238 seconds is equal to 4,536,417,502 years, 34 weeks, 2 days, 15 hours, 38 seconds.
• To count from 1 to 142,668,515,891,689,238 would take you about thirteen billion, six hundred nine million, two hundred fifty-two thousand, five hundred 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 142668515891689238 cubic inches would be around 43544 feet tall.

Recreational maths with 142668515891689238

• 142668515891689238 backwards is 832986198515866241
• The number of decimal digits it has is: 18
• The sum of 142668515891689238's digits is 92
• More coming soon!