161316039916505761

Names of 161316039916505761

• Cardinal: 161316039916505761 can be written as One hundred sixty-one quadrillion, three hundred sixteen trillion, thirty-nine billion, nine hundred sixteen million, five hundred five thousand, seven hundred sixty-one.

Scientific notation

• Scientific notation: 1.61316039916505761 × 10¹⁷

Factors of 161316039916505761

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 416

Divisors of 161316039916505761

• Number of divisors d(n): 45
• Complete list of divisors:
  1 7 49 343 409 2401 2863 16807 20041 117649 140287 167281 823543 982009 1170967 5764801 6874063 8196769 48118441 57377383 68417929 336829087 401641681 478925503 2357803609 2811491767 3352478521 19680442369 23467349647 27982932961 137763096583 164271447529 195880530727 964341676081 1149900132703 1371163715089 8049300928921 9598146005623 56345106502447 67187022039361 394415745517129 470309154275527 3292164079928689 23045148559500823 161316039916505761
• Sum of all divisors σ(n): 188663321419892181
• Sum of proper divisors (its aliquot sum) s(n): 27347281503386420
• 161316039916505761 is a deficient number, because the sum of its proper divisors (27347281503386420) is less than itself. Its deficiency is 133968758413119341

Bases of 161316039916505761

• Binary: 1000111101000111000001010101100111110010111100101010100001₂
• Hexadecimal: 0x23D1C1567CBCAA1
• Base-36: 184DRHO5KB6P

Squares and roots of 161316039916505761

• 161316039916505761 squared (161316039916505761²) is 26022864734343680010384167946189121
• 161316039916505761 cubed (161316039916505761³) is 4197905486227215170708370124847623890485586392026081
• 161316039916505761 is a perfect square number. Its square root is 401641681
• The cube root of 161316039916505761 is 544367.9117115105

Scales and comparisons

• 161,316,039,916,505,761 seconds is equal to 5,129,351,086 years, 3 weeks, 4 days, 22 hours, 16 minutes, 1 second.
• To count from 1 to 161,316,039,916,505,761 would take you about fifteen billion, three hundred eighty-eight million, fifty-three thousand, two hundred fifty-eight 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 161316039916505761 cubic inches would be around 45364 feet tall.

Recreational maths with 161316039916505761

• 161316039916505761 backwards is 167505619930613161
• The number of decimal digits it has is: 18
• The sum of 161316039916505761's digits is 70
• More coming soon!