Number 9

Names of 9

Nominal 9
Cardinal nine
Ordinal 9th
This number as US currency nine dollars

Properties (and some facts) of 9

Is 9 an odd number? 9 is an odd number
Is 9 an even number? 9 is NOT an even number
Is 9 a palindrome? 9 is a palindrome number
Is 9 a triangle number? 9 is NOT a triangle number
Factorial (n!) of number 9! 362880

9 in other Bases

Base 2 (Binary) 10012
Base 3 (Ternary) 1003
Base 4 (Quaternary) 214
Base 5 (Quinary) 145
Base 6 (Senary) 136
Base 8 (Octal) 118
Base 12 (Duodecimal) 912
Base 16 (Hexadecimal) 916
Base 20 (Vigesimal) 920

Primes and Factors tests for 9

Is 9 a Prime Number? 9 is NOT a prime
Is 9 a perfect number? 9 is NOT a perfect number
Is 9 a Mersenne Prime? 9 is NOT a Mersenne prime
Is 9 a Fermat Prime? 9 is NOT a Fermat prime
Is 9 a Fibonacci Prime? 9 is NOT a Fibonacci prime
Is 9 a Partition Prime? 9 is NOT a Partition prime
Is 9 a Pell Prime? 9 is NOT a Pell prime
Prime Factors Prime factors of 9

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9 in other Numerals

Roots and stuff for 9

Is 9 a square number? 9 is a square number
Is 9 a cube number? 9 is NOT a cube number
Square root of the number 9 3
Cube root of the number 9 2.0800838230519

Recreational math for 9

Number 9 reversed 9
Sum of the digits 9
No of digits 1