138165121452

Names of 138165121452

• Cardinal: 138165121452 can be written as One hundred thirty-eight billion, one hundred sixty-five million, one hundred twenty-one thousand, four hundred fifty-two.

Scientific notation

• Scientific notation: 1.38165121452 × 10¹¹

Factors of 138165121452

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2750020

Divisors of 138165121452

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 12 53 79 106 158 159 212 237 316 318 474 636 948 4187 8374 12561 16748 25122 50244 2749883 5499766 8249649 10999532 16499298 32998596 145743799 217240757 291487598 434481514 437231397 582975196 651722271 868963028 874462794 1303444542 1748925588 2606889084 11513760121 23027520242 34541280363 46055040484 69082560726 138165121452
• Sum of all divisors σ(n): 332625968640
• Sum of proper divisors (its aliquot sum) s(n): 194460847188
• 138165121452 is an abundant number, because the sum of its proper divisors (194460847188) is greater than itself. Its abundance is 56295725736

Bases of 138165121452

• Binary: 10000000101011010010000111000110101100₂
• Hexadecimal: 0x202B4871AC
• Base-36: 1RGZY20C

Squares and roots of 138165121452

• 138165121452 squared (138165121452²) is 19089600785845910588304
• 138165121452 cubed (138165121452³) is 2637517011046594878990554930697408
• The square root of 138165121452 is 371705.6919822455
• The cube root of 138165121452 is 5169.7095172053

Scales and comparisons

• 138,165,121,452 seconds is equal to 4,393 years, 11 weeks, 4 days, 8 hours, 24 minutes, 12 seconds.
• To count from 1 to 138,165,121,452 would take you about eight thousand, seven hundred eighty-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 138165121452 cubic inches would be around 430.8 feet tall.

Recreational maths with 138165121452

• 138165121452 backwards is 254121561831
• The number of decimal digits it has is: 12
• The sum of 138165121452's digits is 39
• More coming soon!