161402378794020001

Names of 161402378794020001

• Cardinal: 161402378794020001 can be written as One hundred sixty-one quadrillion, four hundred two trillion, three hundred seventy-eight billion, seven hundred ninety-four million, twenty thousand and one.

Scientific notation

• Scientific notation: 1.61402378794020001 × 10¹⁷

Factors of 161402378794020001

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 2387785

Divisors of 161402378794020001

• Number of divisors d(n): 32
• Complete list of divisors:
  1 11 61 671 4327 23557 47597 259127 263947 1436977 2359829 2903417 15806747 25958119 101931139 143949569 1121242529 1583445259 6217799479 10210980083 55590491753 68395794269 112320780913 611495409283 622869785063 3391019996933 6851567635693 37301219966263 240540057815231 2645940635967541 14672943526729091 161402378794020001
• Sum of all divisors σ(n): 179010836922804480
• Sum of proper divisors (its aliquot sum) s(n): 17608458128784479
• 161402378794020001 is a deficient number, because the sum of its proper divisors (17608458128784479) is less than itself. Its deficiency is 143793920665235522

Bases of 161402378794020001

• Binary: 1000111101011010101001101110111101111010111010110010100001₂
• Hexadecimal: 0x23D6A9BBDEBACA1
• Base-36: 1858D97C1601

Squares and roots of 161402378794020001

• 161402378794020001 squared (161402378794020001²) is 26050727880368317312392517988040001
• 161402378794020001 cubed (161402378794020001³) is 4204649449207144907699500465431656165778417582060001
• The square root of 161402378794020001 is 401749149.0893540163
• The cube root of 161402378794020001 is 544465.0124749193

Scales and comparisons

• 161,402,378,794,020,001 seconds is equal to 5,132,096,395 years, 16 weeks, 1 day, 18 hours, 1 second.
• To count from 1 to 161,402,378,794,020,001 would take you about fifteen billion, three hundred ninety-six million, two hundred eighty-nine thousand, one hundred eighty-five 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 161402378794020001 cubic inches would be around 45372.1 feet tall.

Recreational maths with 161402378794020001

• 161402378794020001 backwards is 100020497873204161
• The number of decimal digits it has is: 18
• The sum of 161402378794020001's digits is 55
• More coming soon!