121145657319751681

Names of 121145657319751681

• Cardinal: 121145657319751681 can be written as One hundred twenty-one quadrillion, one hundred forty-five trillion, six hundred fifty-seven billion, three hundred nineteen million, seven hundred fifty-one thousand, six hundred eighty-one.

Scientific notation

• Scientific notation: 1.21145657319751681 × 10¹⁷

Factors of 121145657319751681

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 12930584

Divisors of 121145657319751681

• Number of divisors d(n): 16
• Complete list of divisors:
  1 41 557 22837 424187 12505799 17391667 236272159 512737759 6965730043 9687158519 285594931763 5304797360413 217496691776933 2954772129750041 121145657319751681
• Sum of all divisors σ(n): 124323533965814400
• Sum of proper divisors (its aliquot sum) s(n): 3177876646062719
• 121145657319751681 is a deficient number, because the sum of its proper divisors (3177876646062719) is less than itself. Its deficiency is 117967780673688962

Bases of 121145657319751681

• Binary: 110101110011001010101010101011110101000000000000000000001₂
• Hexadecimal: 0x1AE65555EA00001
• Base-36: X4UJUO00001

Squares and roots of 121145657319751681

• 121145657319751681 squared (121145657319751681²) is 14676270287434704045439971502325761
• 121145657319751681 cubed (121145657319751681³) is 1777966410973618161402982997977462616830734489354241
• The square root of 121145657319751681 is 348059847.3247836167
• The cube root of 121145657319751681 is 494807.1313640575

Scales and comparisons

• 121,145,657,319,751,681 seconds is equal to 3,852,057,174 years, 33 weeks, 4 days, 4 hours, 48 minutes, 1 second.
• To count from 1 to 121,145,657,319,751,681 would take you about eleven billion, five hundred fifty-six million, one hundred seventy-one thousand, five hundred twenty-three 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 121145657319751681 cubic inches would be around 41233.9 feet tall.

Recreational maths with 121145657319751681

• 121145657319751681 backwards is 186157913756541121
• The number of decimal digits it has is: 18
• The sum of 121145657319751681's digits is 73
• More coming soon!