21001325977742

Names of 21001325977742

• Cardinal: 21001325977742 can be written as Twenty-one trillion, one billion, three hundred twenty-five million, nine hundred seventy-seven thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 2.1001325977742 × 10¹³

Factors of 21001325977742

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2213254

Divisors of 21001325977742

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 11 22 61 121 122 242 643 671 1286 1342 7073 7381 14146 14762 39223 77803 78446 155606 431453 862906 2212537 4425074 4745983 9491966 24337907 48675814 134964757 267716977 269929514 535433954 1422661291 1484612327 2845322582 2969224654 15649274201 16330735597 31298548402 32661471194 86782338751 172142016211 173564677502 344284032422 954605726261 1909211452522 10500662988871 21001325977742
• Sum of all divisors σ(n): 35248544688336
• Sum of proper divisors (its aliquot sum) s(n): 14247218710594
• 21001325977742 is a deficient number, because the sum of its proper divisors (14247218710594) is less than itself. Its deficiency is 6754107267148

Bases of 21001325977742

• Binary: 100110001100111000000100100110010000010001110₂
• Hexadecimal: 0x1319C093208E
• Base-36: 7FZVJ8YOE

Squares and roots of 21001325977742

• 21001325977742 squared (21001325977742²) is 441055692823380972279418564
• 21001325977742 cubed (21001325977742³) is 9262754379322666610174218672020565602488
• The square root of 21001325977742 is 4582720.3687048155
• The cube root of 21001325977742 is 27589.8224296931

Scales and comparisons

• 21,001,325,977,742 seconds is equal to 667,777 years, 10 weeks, 4 days, 12 hours, 29 minutes, 2 seconds.
• To count from 1 to 21,001,325,977,742 would take you about one million, six hundred sixty-nine thousand, four hundred forty-three 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 21001325977742 cubic inches would be around 2299.2 feet tall.

Recreational maths with 21001325977742

• 21001325977742 backwards is 24777952310012
• The number of decimal digits it has is: 14
• The sum of 21001325977742's digits is 50
• More coming soon!