12

Previous number

11

Next number

13

Sum of digits

3

Divisors of 12

Number of divisors

6

Sum of divisors

28

Factorization

12 = 2 × 2 × 3

Prime factors of 12

Factor Count
2 2
3 1

Square of 12

144

Cube of 12

1728

Square root of 12

3.46410161513775438635320824687369...

Cube root of 12

2.28942848510666374650668331014458...

12th triangle number

78

Reciprocal of 12

0.0833333333333333

Binary of 12

1100

Number of digits of 12 in base 2

4

Octal of 12

14

Hexadecimal of 12

c

Prime number No
Hexagonal number No
Perfect number No
Deficient number No
Abundant number No
Mersenne number No
Harshad number Yes
Harmonic divisor number No

Quadratic residues of 12

QR12 (sequence)

12th composite number

21

Euler's totient function of 12

4

Carmichael function of 12

2

Möbius function of 12

0

Properties of 12

Properties of the number 12: 12 has 6 divisors. The divisors of 12 are 1, 2, 3, 4, 6, 12 and the sum of them is 28. The factorization of 12 is 2 × 2 × 3. The square and cube of 12 are 144 and 1728 respectively. The square root and cube root of 12 are 3.46410161513775438635320824687369... and 2.28942848510666374650668331014458.... The binary, octal, hexadecimal of 12 are 1100, 14, c. 12 is not a prime number, not hexagonal number, not perfect number, not deficient number, not Mersenne number, not Mersenne number, Harshad number, not harmonic divisor number.

sin 12

-0.53657291800043493967820040779770...

cos 12

0.84385395873249213760658449245966...

tan 12

-0.63585992866158080882854619630962...

sin 12°

0.20791169081775934257549920403108...

cos 12°

0.97814760073380568883294472470880...

tan 12°

0.21255656167002212608707623076043...

log 12

2.48490664978800035456174555292819...

log10 12

1.07918124604762488694120747823035...

log2 12

3.58496250072115607565592654282227...

Related pairs