155699798538239998

Names of 155699798538239998

• Cardinal: 155699798538239998 can be written as One hundred fifty-five quadrillion, six hundred ninety-nine trillion, seven hundred ninety-eight billion, five hundred thirty-eight million, two hundred thirty-nine thousand, nine hundred ninety-eight.

Scientific notation

• Scientific notation: 1.55699798538239998 × 10¹⁷

Factors of 155699798538239998

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1512304

Divisors of 155699798538239998

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 7 14 25439 50878 178073 356146 403567 807134 1083289 2166578 2824969 5649938 7583023 15166046 10266340913 20532681826 27557788871 55115577742 71864386391 143728772782 192904522097 385809044194 437179691863 874359383726 3060257843041 6120515686082 11121414181302857 22242828362605714 77849899269119999 155699798538239998
• Sum of all divisors σ(n): 266925340479283200
• Sum of proper divisors (its aliquot sum) s(n): 111225541941043202
• 155699798538239998 is a deficient number, because the sum of its proper divisors (111225541941043202) is less than itself. Its deficiency is 44474256597196796

Bases of 155699798538239998

• Binary: 1000101001001010000010010001001111011110001011111111111110₂
• Hexadecimal: 0x22928244F78BFFE
• Base-36: 16L2YZZZZZZY

Squares and roots of 155699798538239998

• 155699798538239998 squared (155699798538239998²) is 24242427264848522217943103447040004
• 155699798538239998 cubed (155699798538239998³) is 3774541041214851412479467251085883884167796858879992
• The square root of 155699798538239998 is 394588137.8579949127
• The cube root of 155699798538239998 is 537975.7300059835

Scales and comparisons

• 155,699,798,538,239,998 seconds is equal to 4,950,771,982 years, 21 weeks, 4 days, 23 hours, 59 minutes, 58 seconds.
• To count from 1 to 155,699,798,538,239,998 would take you about fourteen billion, eight hundred fifty-two million, three hundred fifteen thousand, nine hundred forty-seven 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 155699798538239998 cubic inches would be around 44831.3 feet tall.

Recreational maths with 155699798538239998

• 155699798538239998 backwards is 899932835897996551
• The number of decimal digits it has is: 18
• The sum of 155699798538239998's digits is 115
• More coming soon!