21040728360984

Names of 21040728360984

• Cardinal: 21040728360984 can be written as Twenty-one trillion, forty billion, seven hundred twenty-eight million, three hundred sixty thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.1040728360984 × 10¹³

Factors of 21040728360984

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 312112

Divisors of 21040728360984

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 312107 624214 936321 1248428 1872642 2496856 2808963 3745284 5617926 7490568 8426889 11235852 16853778 22471704 33707556 67415112 97410779449 194821558898 292232338347 389643117796 584464676694 779286235592 876697015041 1168929353388 1753394030082 2337858706776 2630091045123 3506788060164 5260182090246 7013576120328 10520364180492 21040728360984
• Sum of all divisors σ(n): 58446654934200
• Sum of proper divisors (its aliquot sum) s(n): 37405926573216
• 21040728360984 is an abundant number, because the sum of its proper divisors (37405926573216) is greater than itself. Its abundance is 16365198212232

Bases of 21040728360984

• Binary: 100110010001011101101001000111100100000011000₂
• Hexadecimal: 0x1322ED23C818
• Base-36: 7GHZ6ES60

Squares and roots of 21040728360984

• 21040728360984 squared (21040728360984²) is 442712249960716443013448256
• 21040728360984 cubed (21040728360984³) is 9314988193503484202392729561336973243904
• The square root of 21040728360984 is 4587017.3709049761
• The cube root of 21040728360984 is 27607.0661915997

Scales and comparisons

• 21,040,728,360,984 seconds is equal to 669,030 years, 4 weeks, 14 hours, 56 minutes, 24 seconds.
• To count from 1 to 21,040,728,360,984 would take you about one million, six hundred seventy-two thousand, five hundred seventy-five 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 21040728360984 cubic inches would be around 2300.6 feet tall.

Recreational maths with 21040728360984

• 21040728360984 backwards is 48906382704012
• 21040728360984 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21040728360984's digits is 54
• More coming soon!