Discover a lot of information on the number 2: properties, mathematical operations, how to write it, symbolism, numerology, representations and many other interesting things!

## Numerology and symbolism of the number 2

The number 2 (two) represents double, association, cooperation, union, complementarity. It is the symbol of duality.

## Mathematical properties of 2

Is 2 a prime number? Yes
Is 2 a perfect number? No
Number of divisors 2
List of dividers 1, 2
Sum of divisors 3

## How to write / spell 2 in letters?

In letters, the number 2 is written as: Two. And in other languages? how does it spell?

2 in other languages
Write 2 in english Two
Write 2 in french Deux
Write 2 in spanish Dos
Write 2 in portuguese Dois

Other ways to write 2
In letter Two
In roman numeral II
In binary 10
In octal 2
In US dollars USD 2.00 (\$)
In euros 2,00 EUR (€)
Some related numbers
Previous number 1
Next number 3
Next prime number 3

## Mathematical operations

Operations and solutions
2*2 = 4 The double of 2 is 4
2*3 = 6 The triple of 2 is 6
2/2 = 1 The half of 2 is 1.000000
2/3 = 0.66666666666667 The third of 2 is 0.666667
22 = 4 The square of 2 is 4.000000
23 = 8 The cube of 2 is 8.000000
√2 = 1.4142135623731 The square root of 2 is 1.414214
log(2) = 0.69314718055995 The natural (Neperian) logarithm of 2 is 0.693147
log10(2) = 0.30102999566398 The decimal logarithm (base 10) of 2 is 0.301030
sin(2) = 0.90929742682568 The sine of 2 is 0.909297
cos(2) = -0.41614683654714 The cosine of 2 is -0.416147
tan(2) = -2.1850398632615 The tangent of 2 is -2.185040