138192971917

Names of 138192971917

• Cardinal: 138192971917 can be written as One hundred thirty-eight billion, one hundred ninety-two million, nine hundred seventy-one thousand, nine hundred seventeen.

Scientific notation

• Scientific notation: 1.38192971917 × 10¹¹

Factors of 138192971917

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 134

Divisors of 138192971917

• Number of divisors d(n): 108
• Complete list of divisors:
  1 7 11 13 49 77 91 103 121 143 169 539 637 721 847 1001 1133 1183 1339 1573 1859 2197 5047 5929 7007 7931 8281 9373 10609 11011 12463 13013 14729 15379 17407 20449 24167 55517 65611 74263 77077 87241 91091 103103 107653 116699 121849 137917 143143 162019 169169 191477 226291 265837 519841 610687 721721 816893 852943 965419 1002001 1134133 1184183 1283689 1340339 1517087 1584037 1792921 1860859 2106247 2489201 5718251 6757933 7938931 8985823 9382373 10619609 11088259 12550447 13026013 14743729 16687957 17424407 19722131 23307973 27381211 62900761 74337263 87853129 103206103 116815699 121970849 138054917 163155811 191668477 216943441 256387703 817709893 966384419 1142090677 1341679339 1518604087 1794713921 2820264733 10630228609 12562997447 19741853131 138192971917
• Sum of all divisors σ(n): 193292302140
• Sum of proper divisors (its aliquot sum) s(n): 55099330223
• 138192971917 is a deficient number, because the sum of its proper divisors (55099330223) is less than itself. Its deficiency is 83093641694

Bases of 138192971917

• Binary: 10000000101100111100010110100010001101₂
• Hexadecimal: 0x202CF1688D
• Base-36: 1RHGIZKD

Squares and roots of 138192971917

• 138192971917 squared (138192971917²) is 19097297487252750654889
• 138192971917 cubed (138192971917³) is 2639112295346514036732078935752213
• The square root of 138192971917 is 371743.1531541637
• The cube root of 138192971917 is 5170.0568531547

Scales and comparisons

• 138,192,971,917 seconds is equal to 4,394 years, 5 weeks, 4 days, 16 hours, 38 minutes, 37 seconds.
• To count from 1 to 138,192,971,917 would take you about eight thousand, seven hundred eighty-eight 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 138192971917 cubic inches would be around 430.8 feet tall.

Recreational maths with 138192971917

• 138192971917 backwards is 719179291831
• The number of decimal digits it has is: 12
• The sum of 138192971917's digits is 58
• More coming soon!