668672763506393020

Names of 668672763506393020

• Cardinal: 668672763506393020 can be written as Six hundred sixty-eight quadrillion, six hundred seventy-two trillion, seven hundred sixty-three billion, five hundred six million, three hundred ninety-three thousand and twenty.

Scientific notation

• Scientific notation: 6.6867276350639302 × 10¹⁷

Factors of 668672763506393020

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 36994797259

Divisors of 668672763506393020

• Number of divisors d(n): 24
• Complete list of divisors:
  1 2 4 5 10 20 903761 1807522 3615044 4518805 9037610 18075220 36993893491 73987786982 147975573964 184969467455 369938934910 739877869820 33433638175319651 66867276350639302 133734552701278604 167168190876598255 334336381753196510 668672763506393020
• Sum of all divisors σ(n): 1404214357144909968
• Sum of proper divisors (its aliquot sum) s(n): 735541593638516948
• 668672763506393020 is an abundant number, because the sum of its proper divisors (735541593638516948) is greater than itself. Its abundance is 66868830132123928

Bases of 668672763506393020

• Binary: 100101000111100110100101010111101011110001101111111110111100₂
• Hexadecimal: 0x9479A55EBC6FFBC
• Base-36: 52W0PMTWKLVG

Squares and roots of 668672763506393020

• 668672763506393020 squared (668672763506393020²) is 447123264655276608951062410704720400
• 668672763506393020 cubed (668672763506393020³) is 298979149005044152937622214893453693375708891611608000
• The square root of 668672763506393020 is 817724136.5560839431
• The cube root of 668672763506393020 is 874455.8307927953

Scales and comparisons

• 668,672,763,506,393,020 seconds is equal to 21,261,725,538 years, 43 weeks, 5 days, 19 hours, 23 minutes, 40 seconds.
• To count from 1 to 668,672,763,506,393,020 would take you about sixty-three billion, seven hundred eighty-five million, one hundred seventy-six thousand, six hundred sixteen 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 668672763506393020 cubic inches would be around 72871.3 feet tall.

Recreational maths with 668672763506393020

• 668672763506393020 backwards is 020393605367276866
• The number of decimal digits it has is: 18
• The sum of 668672763506393020's digits is 79
• More coming soon!