99

Previous number

98

Next number

100

Sum of digits

18

Divisors of 99

Number of divisors

6

Sum of divisors

156

Factorization

99 = 3 × 3 × 11

Prime factors of 99

Factor Count
3 2
11 1

Square of 99

9801

Cube of 99

970299

Square root of 99

9.94987437106619942994711891515180...

Cube root of 99

4.62606500918274132772012308123522...

99th triangle number

4950

Reciprocal of 99

0.0101010101010101

Binary of 99

1100011

Number of digits of 99 in base 2

7

Octal of 99

143

Hexadecimal of 99

63

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 99

QR99 (sequence)

99th composite number

132

Euler's totient function of 99

60

Carmichael function of 99

30

Möbius function of 99

0

Properties of 99

Properties of the number 99: 99 has 6 divisors. The divisors of 99 are 1, 3, 9, 11, 33, 99 and the sum of them is 156. The factorization of 99 is 3 × 3 × 11. The square and cube of 99 are 9801 and 970299 respectively. The square root and cube root of 99 are 9.94987437106619942994711891515180... and 4.62606500918274132772012308123522.... The binary, octal, hexadecimal of 99 are 1100011, 143, 63. 99 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 99

-0.99920683418635369843485705132480...

cos 99

0.03982088039313889937798052187645...

tan 99

-25.09253497967654666922499018255621...

sin 99°

0.98768834059513777035022030759137...

cos 99°

-0.15643446504023081344847412310628...

tan 99°

-6.31375151467504558411292236996815...

log 99

4.59511985013458978954759004409425...

log10 99

1.99563519459754989959776594332652...

log2 99

6.62935662007960946340290320222266...

Related pairs