138705057920155955

Names of 138705057920155955

• Cardinal: 138705057920155955 can be written as One hundred thirty-eight quadrillion, seven hundred five trillion, fifty-seven billion, nine hundred twenty million, one hundred fifty-five thousand, nine hundred fifty-five.

Scientific notation

• Scientific notation: 1.38705057920155955 × 10¹⁷

Factors of 138705057920155955

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 358564091

Divisors of 138705057920155955

• Number of divisors d(n): 32
• Complete list of divisors:
  1 5 31 155 743 3359 3715 16795 23033 104129 115165 520645 2495737 12478685 77367847 358559953 386839235 1792799765 11115358543 55576792715 266410045079 1204402882127 1332050225395 6022014410635 8258711397449 37336489345937 41293556987245 186682446729685 894871341420361 4474356707101805 27741011584031191 138705057920155955
• Sum of all divisors σ(n): 172097762958213120
• Sum of proper divisors (its aliquot sum) s(n): 33392705038057165
• 138705057920155955 is a deficient number, because the sum of its proper divisors (33392705038057165) is less than itself. Its deficiency is 105312352882098790

Bases of 138705057920155955

• Binary: 111101100110001111000001111101001111000011000000100110011₂
• Hexadecimal: 0x1ECC783E9E18133
• Base-36: 11XQU7XV6XBN

Squares and roots of 138705057920155955

• 138705057920155955 squared (138705057920155955²) is 19239093092633818221015851521962025
• 138705057920155955 cubed (138705057920155955³) is 2668559521745046114460016753712521356789595587608875
• The square root of 138705057920155955 is 372431279.4599239283
• The cube root of 138705057920155955 is 517643.5012217333

Scales and comparisons

• 138,705,057,920,155,955 seconds is equal to 4,410,391,798 years, 49 weeks, 1 day, 14 hours, 52 minutes, 35 seconds.
• To count from 1 to 138,705,057,920,155,955 would take you about thirteen billion, two hundred thirty-one million, one hundred seventy-five thousand, three hundred ninety-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 138705057920155955 cubic inches would be around 43137 feet tall.

Recreational maths with 138705057920155955

• 138705057920155955 backwards is 559551029750507831
• The number of decimal digits it has is: 18
• The sum of 138705057920155955's digits is 77
• More coming soon!