11

Previous number

10

Next number

12

Sum of digits

2

Divisors of 11

Number of divisors

2

Sum of divisors

12

Factorization

11 = 11

Prime factors of 11

Factor Count
11 1

Square of 11

121

Cube of 11

1331

Square root of 11

3.31662479035539980998237297171727...

Cube root of 11

2.22398009056931522664513067866210...

11th triangle number

66

Reciprocal of 11

0.0909090909090909

Binary of 11

1011

Number of digits of 11 in base 2

4

Octal of 11

13

Hexadecimal of 11

b

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

Quadratic residues of 11

QR11 (sequence)

11th composite number

20

Euler's totient function of 11

10

Carmichael function of 11

10

Möbius function of 11

-1

Properties of 11

Properties of the number 11: 11 has 2 divisors. The divisors of 11 are 1, 11 and the sum of them is 12. The factorization of 11 is 11. The square and cube of 11 are 121 and 1331 respectively. The square root and cube root of 11 are 3.31662479035539980998237297171727... and 2.22398009056931522664513067866210.... The binary, octal, hexadecimal of 11 are 1011, 13, b. 11 is not a prime number, not hexagonal number, not perfect number, not deficient number, not Mersenne number, not Mersenne number, not Harshad number, not harmonic divisor number.

sin 11

-0.99999020655070347540771535932436...

cos 11

0.00442569798805078542386359785610...

tan 11

-225.95084645419512980879517272114754...

sin 11°

0.19080899537654480435655557357677...

cos 11°

0.98162718344766397571277138922596...

tan 11°

0.19438030913771847663085168278485...

log 11

2.39789527279837066942036472028121...

log10 11

1.04139268515822491778521907690447...

log2 11

3.45943161863729731209105011657812...

Related pairs