8138229633241901721

Names of 8138229633241901721

• Cardinal: 8138229633241901721 can be written as Eight quintillion, one hundred thirty-eight quadrillion, two hundred twenty-nine trillion, six hundred thirty-three billion, two hundred forty-one million, nine hundred one thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 8.138229633241901721 × 10¹⁸

Factors of 8138229633241901721

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1243829618

Divisors of 8138229633241901721

• Number of divisors d(n): 24
• Complete list of divisors:
  1 3 9 11 33 99 70032857 210098571 630295713 770361427 1173796747 2311084281 3521390241 6933252843 10564170723 12911764217 38735292651 116205877953 82204339729716179 246613019189148537 739839057567445611 904247737026877969 2712743211080633907 8138229633241901721
• Sum of all divisors σ(n): 12823877191873142304
• Sum of proper divisors (its aliquot sum) s(n): 4685647558631240583
• 8138229633241901721 is a deficient number, because the sum of its proper divisors (4685647558631240583) is less than itself. Its deficiency is 3452582074610661138

Bases of 8138229633241901721

• Binary: 111000011110000110011001011101110110101111100001110101010011001₂
• Hexadecimal: 0x70F0CCBBB5F0EA99
• Base-36: 1PTW9MWU9VNO9

Squares and roots of 8138229633241901721

• 8138229633241901721 squared (8138229633241901721²) is 66230781563376618197290313228622761841
• 8138229633241901721 cubed (8138229633241901721³) is 539001309151843001795870941934114108499360746902111028361
• The square root of 8138229633241901721 is 2852758250.0523772425
• The cube root of 8138229633241901721 is 2011453.4204773985

Scales and comparisons

• 8,138,229,633,241,901,721 seconds is equal to 258,770,529,140 years, 6 days, 10 hours, 55 minutes, 21 seconds.
• To count from 1 to 8,138,229,633,241,901,721 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 8138229633241901721 cubic inches would be around 167621.1 feet tall.

Recreational maths with 8138229633241901721

• 8138229633241901721 backwards is 1271091423369228318
• The number of decimal digits it has is: 19
• The sum of 8138229633241901721's digits is 72
• More coming soon!