Number 66

Names of 66

Nominal 66
Cardinal sixty-six
Ordinal 66th
This number as US currency sixty-six dollars

Properties (and some facts) of 66

Is 66 an odd number? 66 is NOT an odd number
Is 66 an even number? 66 is an even number
Is 66 a palindrome? 66 is a palindrome number
Is 66 a triangle number? 66 is a triangle number

66 in other Bases

Base 2 (Binary) 10000102
Base 3 (Ternary) 21103
Base 4 (Quaternary) 10024
Base 5 (Quinary) 2315
Base 6 (Senary) 1506
Base 8 (Octal) 1028
Base 12 (Duodecimal) 5612
Base 16 (Hexadecimal) 4216
Base 20 (Vigesimal) 3620

Primes and Factors tests for 66

Is 66 a Prime Number? 66 is NOT a prime
Is 66 a perfect number? 66 is NOT a perfect number
Is 66 a Mersenne Prime? 66 is NOT a Mersenne prime
Is 66 a Fermat Prime? 66 is NOT a Fermat prime
Is 66 a Fibonacci Prime? 66 is NOT a Fibonacci prime
Is 66 a Partition Prime? 66 is NOT a Partition prime
Is 66 a Pell Prime? 66 is NOT a Pell prime
Prime Factors Prime factors of 66

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66 in other Numerals

66 in Roman Numeral LXVI
66 in Chinese Numeral 陸拾陸
66 in Egyptian Numeral 𓎋𓏿
66 in Babylonian Numeral 1   6  

Roots and stuff for 66

Is 66 a square number? 66 is NOT a square number
Is 66 a cube number? 66 is NOT a cube number
Square root of the number 66 8.124038404636
Cube root of the number 66 4.0412400206222

Recreational math for 66

Number 66 reversed 66
Sum of the digits 12
No of digits 2