21007775988375

Names of 21007775988375

• Cardinal: 21007775988375 can be written as Twenty-one trillion, seven billion, seven hundred seventy-five million, nine hundred eighty-eight thousand, three hundred seventy-five.

Scientific notation

• Scientific notation: 2.1007775988375 × 10¹³

Factors of 21007775988375

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 21536

Divisors of 21007775988375

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 11 15 25 33 55 75 121 125 165 275 363 375 605 825 1375 1815 3025 4125 9075 15125 21517 45375 64551 107585 236687 322755 537925 710061 1183435 1613775 2603557 2689625 3550305 5917175 7810671 8068875 13017785 17751525 29585875 39053355 65088925 88757625 195266775 325444625 462981289 976333875 1388943867 2314906445 5092794179 6944719335 11574532225 15278382537 25463970895 34723596675 56020735969 57872661125 76391912685 127319854475 168062207907 173617983375 280103679845 381959563425 636599272375 840311039535 1400518399225 1909797817125 4201555197675 7002591996125 21007775988375
• Sum of all divisors σ(n): 38425528958544
• Sum of proper divisors (its aliquot sum) s(n): 17417752970169
• 21007775988375 is a deficient number, because the sum of its proper divisors (17417752970169) is less than itself. Its deficiency is 3590023018206

Bases of 21007775988375

• Binary: 100110001101101000001000001100111101010010111₂
• Hexadecimal: 0x131B41067A97
• Base-36: 7G2U7F2QF

Squares and roots of 21007775988375

• 21007775988375 squared (21007775988375²) is 441326651977745208135140625
• 21007775988375 cubed (21007775988375³) is 9271291442448005988335123933928990234375
• The square root of 21007775988375 is 4583424.0463189745
• The cube root of 21007775988375 is 27592.6466391943

Scales and comparisons

• 21,007,775,988,375 seconds is equal to 667,982 years, 15 weeks, 2 days, 10 hours, 6 minutes, 15 seconds.
• To count from 1 to 21,007,775,988,375 would take you about one million, six hundred sixty-nine thousand, nine hundred fifty-five 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 21007775988375 cubic inches would be around 2299.4 feet tall.

Recreational maths with 21007775988375

• 21007775988375 backwards is 57388957770012
• The number of decimal digits it has is: 14
• The sum of 21007775988375's digits is 69
• More coming soon!