21396558023428

Names of 21396558023428

• Cardinal: 21396558023428 can be written as Twenty-one trillion, three hundred ninety-six billion, five hundred fifty-eight million, twenty-three thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1396558023428 × 10¹³

Factors of 21396558023428

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2658282

Divisors of 21396558023428

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 7 14 19 28 38 76 133 266 532 15217 30434 60868 106519 213038 289123 426076 578246 1156492 2023861 2643037 4047722 5286074 8095444 10572148 18501259 37002518 50217703 74005036 100435406 200870812 351523921 703047842 1406095684 40219094029 80438188058 160876376116 281533658203 563067316406 764162786551 1126134632812 1528325573102 3056651146204 5349139505857 10698279011714 21396558023428
• Sum of all divisors σ(n): 45048362558080
• Sum of proper divisors (its aliquot sum) s(n): 23651804534652
• 21396558023428 is an abundant number, because the sum of its proper divisors (23651804534652) is greater than itself. Its abundance is 2255246511224

Bases of 21396558023428

• Binary: 100110111010111000110001111011000101100000100₂
• Hexadecimal: 0x1375C63D8B04
• Base-36: 7L1FY7CW4

Squares and roots of 21396558023428

• 21396558023428 squared (21396558023428²) is 457812695249921122196871184
• 21396558023428 cubed (21396558023428³) is 9795615897776897610825593757812970098752
• The square root of 21396558023428 is 4625641.3634682055
• The cube root of 21396558023428 is 27761.8224217523

Scales and comparisons

• 21,396,558,023,428 seconds is equal to 680,344 years, 18 weeks, 5 days, 11 hours, 50 minutes, 28 seconds.
• To count from 1 to 21,396,558,023,428 would take you about one million, seven hundred thousand, eight hundred sixty 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 21396558023428 cubic inches would be around 2313.5 feet tall.

Recreational maths with 21396558023428

• 21396558023428 backwards is 82432085569312
• The number of decimal digits it has is: 14
• The sum of 21396558023428's digits is 58
• More coming soon!