165122139

Names of 165122139

• Cardinal: 165122139 can be written as One hundred sixty-five million, one hundred twenty-two thousand, one hundred thirty-nine.

Scientific notation

• Scientific notation: 1.65122139 × 10⁸

Factors of 165122139

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 844

Divisors of 165122139

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 13 17 21 39 47 51 91 119 141 221 273 329 357 611 663 757 799 987 1547 1833 2271 2397 4277 4641 5299 5593 9841 10387 12831 12869 15897 16779 29523 31161 35579 38607 68887 72709 90083 106737 167297 206661 218127 249053 270249 462527 501891 604843 747159 1171079 1387581 1814529 3237689 3513237 4233901 7862959 9713067 12701703 23588877 55040713 165122139
• Sum of all divisors σ(n): 293400576
• Sum of proper divisors (its aliquot sum) s(n): 128278437
• 165122139 is a deficient number, because the sum of its proper divisors (128278437) is less than itself. Its deficiency is 36843702

Bases of 165122139

• Binary: 1001110101111001000001011011₂
• Hexadecimal: 0x9D7905B
• Base-36: 2QB523

Squares and roots of 165122139

• 165122139 squared (165122139²) is 27265320787935321
• 165122139 cubed (165122139³) is 4502108089025045597171619
• The square root of 165122139 is 12849.9859532997
• The cube root of 165122139 is 548.6159569723

Scales and comparisons

• 165,122,139 seconds is equal to 5 years, 13 weeks, 3 hours, 15 minutes, 39 seconds.
• To count from 1 to 165,122,139 would take you about 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 165122139 cubic inches would be around 45.7 feet tall.

Recreational maths with 165122139

• 165122139 backwards is 931221561
• The number of decimal digits it has is: 9
• The sum of 165122139's digits is 30
• More coming soon!