18005464809623070125

Names of 18005464809623070125

• Cardinal: 18005464809623070125 can be written as Eighteen quintillion, five quadrillion, four hundred sixty-four trillion, eight hundred nine billion, six hundred twenty-three million, seventy thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 1.8005464809623070125 × 10¹⁹

Factors of 18005464809623070125

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 379530924

Divisors of 18005464809623070125

• Number of divisors d(n): 12
• Complete list of divisors:
  1 5 25 125 379530919 1897654595 9488272975 47441364875 144043718476984561 720218592384922805 3601092961924614025 18005464809623070125
• Sum of all divisors σ(n): 22470820141616415036
• Sum of proper divisors (its aliquot sum) s(n): 4465355331993344911
• 18005464809623070125 is a deficient number, because the sum of its proper divisors (4465355331993344911) is less than itself. Its deficiency is 13540109477629725214

Bases of 18005464809623070125

• Binary: 1111100111100000010000101101100011101001011000010010010110101101₂
• Hexadecimal: 0xF9E042D8E96125AD
• Base-36: 3SSP0L2UCNVZH

Squares and roots of 18005464809623070125

• 18005464809623070125 squared (18005464809623070125²) is 324196763010574740899841678630667515625
• 18005464809623070125 cubed (18005464809623070125³) is 5837313407780613709789986518390278227950014978418908203125
• The square root of 18005464809623070125 is 4243284672.2348325289
• The cube root of 18005464809623070125 is 2621006.5868692857

Scales and comparisons

• 18,005,464,809,623,070,125 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,005,464,809,623,070,125 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 18005464809623070125 cubic inches would be around 218417.2 feet tall.

Recreational maths with 18005464809623070125

• 18005464809623070125 backwards is 52107032690846450081
• The number of decimal digits it has is: 20
• The sum of 18005464809623070125's digits is 71
• More coming soon!