72101987384166494091

Names of 72101987384166494091

• Cardinal: 72101987384166494091 can be written as Seventy-two quintillion, one hundred one quadrillion, nine hundred eighty-seven trillion, three hundred eighty-four billion, one hundred sixty-six million, four hundred ninety-four thousand and ninety-one.

Scientific notation

• Scientific notation: 7.2101987384166494091 × 10¹⁹

Factors of 72101987384166494091

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 154156

Divisors of 72101987384166494091

• Number of divisors d(n): 30
• Complete list of divisors:
  1 3 9 27 81 243 729 2187 6561 19683 154153 462459 1387377 4162131 12486393 37459179 112377537 337132611 1011397833 3034193499 23763147409 71289442227 213868326681 641604980043 1924814940129 5774444820387 17323334461161 51970003383483 155910010150449 467730030451347
• Sum of all divisors σ(n): 72102221241851388756
• Sum of proper divisors (its aliquot sum) s(n): 233857684894665
• 72101987384166494091 is a deficient number, because the sum of its proper divisors (233857684894665) is less than itself. Its deficiency is 72101753526481599426

Bases of 72101987384166494091

• Binary: 111110100010011101101101111000001101100000111100001010111110001011₂
• Hexadecimal: 0x3E89DB78360F0AF8B
• Base-36: F7SP1EDBLO1OR

Squares and roots of 72101987384166494091

• 72101987384166494091 squared (72101987384166494091²) is 5198696584746504273153612816170337916281
• 72101987384166494091 cubed (72101987384166494091³) is 374836355567501890203286054859920742103903740711438039195571
• The square root of 72101987384166494091 is 8491288911.8299639969
• 72101987384166494091 is a perfect cube number. Its cube root is 4162131

Scales and comparisons

• 72,101,987,384,166,494,091 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 72,101,987,384,166,494,091 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 72101987384166494091 cubic inches would be around 346844.3 feet tall.

Recreational maths with 72101987384166494091

• 72101987384166494091 backwards is 19049466148378910127
• The number of decimal digits it has is: 20
• The sum of 72101987384166494091's digits is 90
• More coming soon!