138465754607197161

Names of 138465754607197161

• Cardinal: 138465754607197161 can be written as One hundred thirty-eight quadrillion, four hundred sixty-five trillion, seven hundred fifty-four billion, six hundred seven million, one hundred ninety-seven thousand, one hundred sixty-one.

Scientific notation

• Scientific notation: 1.38465754607197161 × 10¹⁷

Factors of 138465754607197161

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 14213

Divisors of 138465754607197161

• Number of divisors d(n): 81
• Complete list of divisors:
  1 3 9 27 81 243 331 729 993 2187 2979 6561 8937 13879 26811 41637 80433 109561 124911 241299 328683 374733 723897 986049 1124199 2171691 2958147 3372597 4593949 8874441 10117791 13781847 26623323 30353373 41345541 79869969 91060119 124036623 192626641 239609907 372109869 577879923 718829721 1116329607 1520597119 1733639769 3348988821 4561791357 5200919307 10046966463 13685374071 15602757921 30140899389 41056122213 46808273763 63759418171 123168366639 140424821289 191278254513 369505099917 421274463867 573834763539 1108515299751 1263823391601 1721504290617 3325545899253 5164512871851 9976637697759 15493538615553 21104367414601 46480615846659 63313102243803 139441847539977 189939306731409 418325542619931 569817920194227 1709453760582681 5128361281748043 15385083845244129 46155251535732387 138465754607197161
• Sum of all divisors σ(n): 208332442423423773
• Sum of proper divisors (its aliquot sum) s(n): 69866687816226612
• 138465754607197161 is a deficient number, because the sum of its proper divisors (69866687816226612) is less than itself. Its deficiency is 68599066790970549

Bases of 138465754607197161

• Binary: 111101011111011011101111011000100111010110001101111101001₂
• Hexadecimal: 0x1EBEDDEC4EB1BE9
• Base-36: 11VE0HILA9K9

Squares and roots of 138465754607197161

• 138465754607197161 squared (138465754607197161²) is 19172765198940541817737180326459921
• 138465754607197161 cubed (138465754607197161³) is 2654771401177910721277806447269034450416951211484281
• 138465754607197161 is a perfect square number. Its square root is 372109869
• The cube root of 138465754607197161 is 517345.6387081127

Scales and comparisons

• 138,465,754,607,197,161 seconds is equal to 4,402,782,693 years, 42 weeks, 6 hours, 19 minutes, 21 seconds.
• To count from 1 to 138,465,754,607,197,161 would take you about thirteen billion, two hundred eight million, three hundred forty-eight thousand and eighty-one 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 138465754607197161 cubic inches would be around 43112.1 feet tall.

Recreational maths with 138465754607197161

• 138465754607197161 backwards is 161791706457564831
• 138465754607197161 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 138465754607197161's digits is 81
• More coming soon!