138468900

Names of 138468900

• Cardinal: 138468900 can be written as One hundred thirty-eight million, four hundred sixty-eight thousand, nine hundred.

Scientific notation

• Scientific notation: 1.384689 × 10⁸

Factors of 138468900

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 160

Divisors of 138468900

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 25 30 50 60 67 75 83 100 134 150 166 201 249 268 300 332 335 402 415 498 670 804 830 996 1005 1245 1340 1660 1675 2010 2075 2490 3350 4020 4150 4980 5025 5561 6225 6700 6889 8300 10050 11122 12450 13778 16683 20100 20667 22244 24900 27556 27805 33366 34445 41334 55610 66732 68890 82668 83415 103335 111220 137780 139025 166830 172225 206670 278050 333660 344450 413340 417075 461563 516675 556100 688900 834150 923126 1033350 1384689 1668300 1846252 2066700 2307815 2769378 4615630 5538756 6923445 9231260 11539075 13846890 23078150 27693780 34617225 46156300 69234450 138468900
• Sum of all divisors σ(n): 411574352
• Sum of proper divisors (its aliquot sum) s(n): 273105452
• 138468900 is an abundant number, because the sum of its proper divisors (273105452) is greater than itself. Its abundance is 134636552

Bases of 138468900

• Binary: 1000010000001101111000100100₂
• Hexadecimal: 0x840DE24
• Base-36: 2AFVAC

Squares and roots of 138468900

• 138468900 squared (138468900²) is 19173636267210000
• 138468900 cubed (138468900³) is 2654952322920674769000000
• The square root of 138468900 is 11767.2809093689
• The cube root of 138468900 is 517.3495560255

Scales and comparisons

• 138,468,900 seconds is equal to 4 years, 20 weeks, 6 days, 15 hours, 35 minutes.
• To count from 1 to 138,468,900 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 138468900 cubic inches would be around 43.1 feet tall.

Recreational maths with 138468900

• 138468900 backwards is 009864831
• The number of decimal digits it has is: 9
• The sum of 138468900's digits is 39
• More coming soon!