30721438587023418807

Names of 30721438587023418807

• Cardinal: 30721438587023418807 can be written as Thirty quintillion, seven hundred twenty-one quadrillion, four hundred thirty-eight trillion, five hundred eighty-seven billion, twenty-three million, four hundred eighteen thousand, eight hundred seven.

Scientific notation

• Scientific notation: 3.0721438587023418807 × 10¹⁹

Factors of 30721438587023418807

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1043984

Divisors of 30721438587023418807

• Number of divisors d(n): 12
• Complete list of divisors:
  1 3 9 27 1043981 3131943 9395829 28187487 1089896328361 3269688985083 9809066955249 29427200865747
• Sum of all divisors σ(n): 30721452755717446780
• Sum of proper divisors (its aliquot sum) s(n): 14168694027973
• 30721438587023418807 is a deficient number, because the sum of its proper divisors (14168694027973) is less than itself. Its deficiency is 30721424418329390834

Bases of 30721438587023418807

• Binary: 11010101001011000011110011010000000110000100000100110010110110111₂
• Hexadecimal: 0x1AA5879A0308265B7
• Base-36: 6HENL37G38J3R

Squares and roots of 30721438587023418807

• 30721438587023418807 squared (30721438587023418807²) is 943806788856251475451063159858521303249
• 30721438587023418807 cubed (30721438587023418807³) is 28995102301863108503131489293498779512480893926869176803943
• The square root of 30721438587023418807 is 5542692359.0456848309
• 30721438587023418807 is a perfect cube number. Its cube root is 3131943

Scales and comparisons

• 30,721,438,587,023,418,807 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 30,721,438,587,023,418,807 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 30721438587023418807 cubic inches would be around 260995.3 feet tall.

Recreational maths with 30721438587023418807

• 30721438587023418807 backwards is 70881432078583412703
• The number of decimal digits it has is: 20
• The sum of 30721438587023418807's digits is 81
• More coming soon!