21364378542

Names of 21364378542

• Cardinal: 21364378542 can be written as Twenty-one billion, three hundred sixty-four million, three hundred seventy-eight thousand, five hundred forty-two.

Scientific notation

• Scientific notation: 2.1364378542 × 10¹⁰

Factors of 21364378542

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 38622

Divisors of 21364378542

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 9 13 18 26 39 78 117 234 2531 5062 7593 15186 22779 32903 36073 45558 65806 72146 98709 108219 197418 216438 296127 324657 468949 592254 649314 937898 1406847 2813694 4220541 8441082 91300763 182601526 273902289 547804578 821706867 1186909919 1643413734 2373819838 3560729757 7121459514 10682189271 21364378542
• Sum of all divisors σ(n): 49871294928
• Sum of proper divisors (its aliquot sum) s(n): 28506916386
• 21364378542 is an abundant number, because the sum of its proper divisors (28506916386) is greater than itself. Its abundance is 7142537844

Bases of 21364378542

• Binary: 10011111001011010101000101110101110₂
• Hexadecimal: 0x4F96A8BAE
• Base-36: 9TBSRZI

Squares and roots of 21364378542

• 21364378542 squared (21364378542²) is 456436670485870045764
• 21364378542 cubed (21364378542³) is 9751485808710246719920959596088
• The square root of 21364378542 is 146165.5860385749
• The cube root of 21364378542 is 2774.7897919173

Scales and comparisons

• 21,364,378,542 seconds is equal to 679 years, 16 weeks, 4 days, 21 hours, 35 minutes, 42 seconds.
• To count from 1 to 21,364,378,542 would take you about one thousand, three hundred fifty-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 21364378542 cubic inches would be around 231.2 feet tall.

Recreational maths with 21364378542

• 21364378542 backwards is 24587346312
• The number of decimal digits it has is: 11
• The sum of 21364378542's digits is 45
• More coming soon!