21389674204680

Names of 21389674204680

• Cardinal: 21389674204680 can be written as Twenty-one trillion, three hundred eighty-nine billion, six hundred seventy-four million, two hundred four thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.138967420468 × 10¹³

Factors of 21389674204680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1665862594

Divisors of 21389674204680

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 107 120 214 321 428 535 642 856 1070 1284 1605 2140 2568 3210 4280 6420 12840 1665862477 3331724954 4997587431 6663449908 8329312385 9995174862 13326899816 16658624770 19990349724 24987937155 33317249540 39980699448 49975874310 66634499080 99951748620 178247285039 199903497240 356494570078 534741855117 712989140156 891236425195 1069483710234 1425978280312 1782472850390 2138967420468 2673709275585 3564945700780 4277934840936 5347418551170 7129891401560 10694837102340 21389674204680
• Sum of all divisors σ(n): 64768733144640
• Sum of proper divisors (its aliquot sum) s(n): 43379058939960
• 21389674204680 is an abundant number, because the sum of its proper divisors (43379058939960) is greater than itself. Its abundance is 21989384735280

Bases of 21389674204680

• Binary: 100110111010000101011111011101100111000001000₂
• Hexadecimal: 0x13742BEECE08
• Base-36: 7KYA3R8CO

Squares and roots of 21389674204680

• 21389674204680 squared (21389674204680²) is 457518162582352990533902400
• 21389674204680 cubed (21389674204680³) is 9786164440360346137801268386296743232000
• The square root of 21389674204680 is 4624897.2101745137
• The cube root of 21389674204680 is 27758.8448734969

Scales and comparisons

• 21,389,674,204,680 seconds is equal to 680,125 years, 24 weeks, 5 days, 15 hours, 58 minutes.
• To count from 1 to 21,389,674,204,680 would take you about one million, seven hundred thousand, three hundred thirteen 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 21389674204680 cubic inches would be around 2313.2 feet tall.

Recreational maths with 21389674204680

• 21389674204680 backwards is 08640247698312
• 21389674204680 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21389674204680's digits is 60
• More coming soon!