31420747254749245821

Names of 31420747254749245821

• Cardinal: 31420747254749245821 can be written as Thirty-one quintillion, four hundred twenty quadrillion, seven hundred forty-seven trillion, two hundred fifty-four billion, seven hundred forty-nine million, two hundred forty-five thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 3.1420747254749245821 × 10¹⁹

Factors of 31420747254749245821

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 14352347426467

Divisors of 31420747254749245821

• Number of divisors d(n): 16
• Complete list of divisors:
  1 3 9 27 81083 243249 729747 2189241 14352347345381 43057042036143 129171126108429 387513378325287 1163731379805527623 3491194139416582869 10473582418249748607 31420747254749245821
• Sum of all divisors σ(n): 46549829286118163520
• Sum of proper divisors (its aliquot sum) s(n): 15129082031368917699
• 31420747254749245821 is a deficient number, because the sum of its proper divisors (15129082031368917699) is less than itself. Its deficiency is 16291665223380328122

Bases of 31420747254749245821

• Binary: 11011010000001100111010110010011101101000101010001011000101111101₂
• Hexadecimal: 0x1B40CEB2768A8B17D
• Base-36: 6MPX9BMDSGC59

Squares and roots of 31420747254749245821

• 31420747254749245821 squared (31420747254749245821²) is 987263358046832267662074820368285964041
• 31420747254749245821 cubed (31420747254749245821³) is 31020552447064526722784746210863127472678257432904675522661
• The square root of 31420747254749245821 is 5605421237.9400395801
• The cube root of 31420747254749245821 is 3155528.9562545211

Scales and comparisons

• 31,420,747,254,749,245,821 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 31,420,747,254,749,245,821 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 31420747254749245821 cubic inches would be around 262960.7 feet tall.

Recreational maths with 31420747254749245821

• 31420747254749245821 backwards is 12854294745274702413
• The number of decimal digits it has is: 20
• The sum of 31420747254749245821's digits is 81
• More coming soon!