21998667522

Names of 21998667522

• Cardinal: 21998667522 can be written as Twenty-one billion, nine hundred ninety-eight million, six hundred sixty-seven thousand, five hundred twenty-two.

Scientific notation

• Scientific notation: 2.1998667522 × 10¹⁰

Factors of 21998667522

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 16590282

Divisors of 21998667522

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 13 17 26 34 39 51 78 102 221 442 663 1326 16590247 33180494 49770741 99541482 215673211 282034199 431346422 564068398 647019633 846102597 1294039266 1692205194 3666444587 7332889174 10999333761 21998667522
• Sum of all divisors σ(n): 50168909952
• Sum of proper divisors (its aliquot sum) s(n): 28170242430
• 21998667522 is an abundant number, because the sum of its proper divisors (28170242430) is greater than itself. Its abundance is 6171574908

Bases of 21998667522

• Binary: 10100011111001110010000011100000010₂
• Hexadecimal: 0x51F390702
• Base-36: A3TFSHU

Squares and roots of 21998667522

• 21998667522 squared (21998667522²) is 483941372743497620484
• 21998667522 cubed (21998667522³) is 10646065359124477140425652720648
• The square root of 21998667522 is 148319.4778914759
• The cube root of 21998667522 is 2801.9827589715

Scales and comparisons

• 21,998,667,522 seconds is equal to 699 years, 25 weeks, 3 days, 4 hours, 58 minutes, 42 seconds.
• To count from 1 to 21,998,667,522 would take you about one thousand, three hundred ninety-eight 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 21998667522 cubic inches would be around 233.5 feet tall.

Recreational maths with 21998667522

• 21998667522 backwards is 22576689912
• The number of decimal digits it has is: 11
• The sum of 21998667522's digits is 57
• More coming soon!