138522930

Names of 138522930

• Cardinal: 138522930 can be written as One hundred thirty-eight million, five hundred twenty-two thousand, nine hundred thirty.

Scientific notation

• Scientific notation: 1.3852293 × 10⁸

Factors of 138522930

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 50771

Divisors of 138522930

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 50741 101482 152223 253705 304446 355187 507410 659633 710374 761115 1065561 1319266 1522230 1775935 1978899 2131122 3298165 3551870 3957798 4617431 5327805 6596330 9234862 9894495 10655610 13852293 19788990 23087155 27704586 46174310 69261465 138522930
• Sum of all divisors σ(n): 409183488
• Sum of proper divisors (its aliquot sum) s(n): 270660558
• 138522930 is an abundant number, because the sum of its proper divisors (270660558) is greater than itself. Its abundance is 132137628

Bases of 138522930

• Binary: 1000010000011011000100110010₂
• Hexadecimal: 0x841B132
• Base-36: 2AH0Z6

Squares and roots of 138522930

• 138522930 squared (138522930²) is 19188602135784900
• 138522930 cubed (138522930³) is 2658061390453182197757000
• The square root of 138522930 is 11769.5764579701
• The cube root of 138522930 is 517.4168365043

Scales and comparisons

• 138,522,930 seconds is equal to 4 years, 21 weeks, 6 hours, 35 minutes, 30 seconds.
• To count from 1 to 138,522,930 would take you about 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 138522930 cubic inches would be around 43.1 feet tall.

Recreational maths with 138522930

• 138522930 backwards is 039225831
• The number of decimal digits it has is: 9
• The sum of 138522930's digits is 33
• More coming soon!