642943379180025

Names of 642943379180025

• Cardinal: 642943379180025 can be written as Six hundred forty-two trillion, nine hundred forty-three billion, three hundred seventy-nine million, one hundred eighty thousand and twenty-five.

Scientific notation

• Scientific notation: 6.42943379180025 × 10¹⁴

Factors of 642943379180025

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 37110728983

Divisors of 642943379180025

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 7 9 11 15 21 25 33 35 45 55 63 75 77 99 105 165 175 225 231 275 315 385 495 525 693 825 1155 1575 1925 2475 3465 5775 17325 37110728957 111332186871 185553644785 259775102699 333996560613 408218018527 556660934355 779325308097 927768223925 1224654055581 1298875513495 1669982803065 2041090092635 2337975924291 2783304671775 2857526129689 3673962166743 3896626540485 6123270277905 6494377567475 8349914015325 8572578389067 10205450463175 11689879621455 14287630648445 18369810833715 19483132702425 25717735167201 30616351389525 42862891945335 58449398107275 71438153242225 91849054168575 128588675836005 214314459726675 642943379180025
• Sum of all divisors σ(n): 1435739881927104
• Sum of proper divisors (its aliquot sum) s(n): 792796502747079
• 642943379180025 is an abundant number, because the sum of its proper divisors (792796502747079) is greater than itself. Its abundance is 149853123567054

Bases of 642943379180025

• Binary: 10010010001100000011101011101110100000100111111001₂
• Hexadecimal: 0x248C0EBBA09F9
• Base-36: 6BWK3ZNOC9

Squares and roots of 642943379180025

• 642943379180025 squared (642943379180025²) is 413376188831429404641359000625
• 642943379180025 cubed (642943379180025³) is 265777483719839331214451717584461265962515625
• The square root of 642943379180025 is 25356328.1880485409
• The cube root of 642943379180025 is 86309.2963860543

Scales and comparisons

• 642,943,379,180,025 seconds is equal to 20,443,610 years, 36 weeks, 4 days, 1 hour, 33 minutes, 45 seconds.
• To count from 1 to 642,943,379,180,025 would take you about fifty-one million, one hundred nine thousand and twenty-six 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 642943379180025 cubic inches would be around 7192.4 feet tall.

Recreational maths with 642943379180025

• 642943379180025 backwards is 520081973349246
• 642943379180025 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 642943379180025's digits is 63
• More coming soon!