31720440157535749

Names of 31720440157535749

• Cardinal: 31720440157535749 can be written as Thirty-one quadrillion, seven hundred twenty trillion, four hundred forty billion, one hundred fifty-seven million, five hundred thirty-five thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 3.1720440157535749 × 10¹⁶

Factors of 31720440157535749

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 7236011

Divisors of 31720440157535749

• Number of divisors d(n): 8
• Complete list of divisors:
  1 9479 497291 6729241 4713821389 63786475439 3346390986131 31720440157535749
• Sum of all divisors σ(n): 31723855056054720
• Sum of proper divisors (its aliquot sum) s(n): 3414898518971
• 31720440157535749 is a deficient number, because the sum of its proper divisors (3414898518971) is less than itself. Its deficiency is 31717025259016778

Bases of 31720440157535749

• Binary: 1110000101100011001001001111111101101010111111000000101₂
• Hexadecimal: 0x70B1927FB57E05
• Base-36: 8OBYH1CAVID

Squares and roots of 31720440157535749

• 31720440157535749 squared (31720440157535749²) is 1006186323787806572836632212991001
• 31720440157535749 cubed (31720440157535749³) is 31916673071042007276738647433190178071504872794749
• The square root of 31720440157535749 is 178102330.5786191811
• The cube root of 31720440157535749 is 316552.9766397121

Scales and comparisons

• 31,720,440,157,535,749 seconds is equal to 1,008,611,879 years, 12 weeks, 5 days, 13 hours, 15 minutes, 49 seconds.
• To count from 1 to 31,720,440,157,535,749 would take you about three billion, twenty-five million, eight hundred thirty-five thousand, six hundred thirty-seven 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 31720440157535749 cubic inches would be around 26379.4 feet tall.

Recreational maths with 31720440157535749

• 31720440157535749 backwards is 94753575104402713
• The number of decimal digits it has is: 17
• The sum of 31720440157535749's digits is 67
• More coming soon!