642829799015103555

Names of 642829799015103555

• Cardinal: 642829799015103555 can be written as Six hundred forty-two quadrillion, eight hundred twenty-nine trillion, seven hundred ninety-nine billion, fifteen million, one hundred three thousand, five hundred fifty-five.

Scientific notation

• Scientific notation: 6.42829799015103555 × 10¹⁷

Factors of 642829799015103555

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 22852108448

Divisors of 642829799015103555

• Number of divisors d(n): 40
• Complete list of divisors:
  1 3 5 9 15 27 45 81 135 405 69457 208371 347285 625113 1041855 1875339 3125565 5626017 9376695 28130085 22852038983 68556116949 114260194915 205668350847 342780584745 617005052541 1028341754235 1851015157623 3085025262705 9255075788115 1587234071642231 4761702214926693 7936170358211155 14285106644780079 23808511074633465 42855319934340237 71425533223900395 128565959803020711 214276599671701185 642829799015103555
• Sum of all divisors σ(n): 1152348526642987872
• Sum of proper divisors (its aliquot sum) s(n): 509518727627884317
• 642829799015103555 is a deficient number, because the sum of its proper divisors (509518727627884317) is less than itself. Its deficiency is 133311071387219238

Bases of 642829799015103555

• Binary: 100011101011110010100100101111011101010101001011110001000011₂
• Hexadecimal: 0x8EBCA4BDD54BC43
• Base-36: 4VTK58U8116R

Squares and roots of 642829799015103555

• 642829799015103555 squared (642829799015103555²) is 413230150501798431449899007373638025
• 642829799015103555 cubed (642829799015103555³) is 265636654594052079133216047688612528911820122460678875
• The square root of 642829799015103555 is 801766673.6745195715
• The cube root of 642829799015103555 is 863042.1371898081

Scales and comparisons

• 642,829,799,015,103,555 seconds is equal to 20,439,999,205 years, 28 weeks, 6 days, 22 hours, 59 minutes, 15 seconds.
• To count from 1 to 642,829,799,015,103,555 would take you about sixty-one billion, three hundred nineteen million, nine hundred ninety-seven thousand, six hundred sixteen 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 642829799015103555 cubic inches would be around 71920.2 feet tall.

Recreational maths with 642829799015103555

• 642829799015103555 backwards is 555301510997928246
• 642829799015103555 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 642829799015103555's digits is 81
• More coming soon!