2138820768

Names of 2138820768

• Cardinal: 2138820768 can be written as Two billion, one hundred thirty-eight million, eight hundred twenty thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 2.138820768 × 10⁹

Factors of 2138820768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 353653

Divisors of 2138820768

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 72 84 96 108 112 126 144 168 189 216 224 252 288 336 378 432 504 672 756 864 1008 1512 2016 3024 6048 353641 707282 1060923 1414564 2121846 2475487 2829128 3182769 4243692 4950974 5658256 6365538 7426461 8487384 9548307 9901948 11316512 12731076 14852922 16974768 19096614 19803896 22279383 25462152 29705844 33949536 38193228 39607792 44558766 50924304 59411688 66838149 76386456 79215584 89117532 101848608 118823376 133676298 152772912 178235064 237646752 267352596 305545824 356470128 534705192 712940256 1069410384 2138820768
• Sum of all divisors σ(n): 7129422720
• Sum of proper divisors (its aliquot sum) s(n): 4990601952
• 2138820768 is an abundant number, because the sum of its proper divisors (4990601952) is greater than itself. Its abundance is 2851781184

Bases of 2138820768

• Binary: 1111111011110111101000010100000₂
• Hexadecimal: 0x7F7BD0A0
• Base-36: ZDECO0

Squares and roots of 2138820768

• 2138820768 squared (2138820768²) is 4574554277628109824
• 2138820768 cubed (2138820768³) is 9784151693334239072156024832
• The square root of 2138820768 is 46247.3866072451
• The cube root of 2138820768 is 1288.4219969287

Scales and comparisons

• 2,138,820,768 seconds is equal to 68 years, 2 days, 20 hours, 52 minutes, 48 seconds.
• To count from 1 to 2,138,820,768 would take you about one hundred thirty-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 2138820768 cubic inches would be around 107.4 feet tall.

Recreational maths with 2138820768

• 2138820768 backwards is 8670288312
• The number of decimal digits it has is: 10
• The sum of 2138820768's digits is 45
• More coming soon!