Names of 423
| Nominal | 423 |
| Cardinal | four hundred twenty-three |
| Ordinal | 423rd |
| This number as US currency | four hundred twenty-three dollars |
| Is 423 an odd number? | 423 is an odd number |
| Is 423 an even number? | 423 is NOT an even number |
| Is 423 a palindrome? | 423 is NOT a palindrome number |
| Is 423 a triangle number? | 423 is NOT a triangle number |
423 in other Bases
| Base 2 (Binary) | 1101001112 |
| Base 3 (Ternary) | 1202003 |
| Base 4 (Quaternary) | 122134 |
| Base 5 (Quinary) | 31435 |
| Base 6 (Senary) | 15436 |
| Base 8 (Octal) | 6478 |
| Base 12 (Duodecimal) | 2B312 |
| Base 16 (Hexadecimal) | 1A716 |
| Base 20 (Vigesimal) | 11320 |
Primes and Factors tests for 423
| Is 423 a Prime Number? | 423 is NOT a prime |
| Is 423 a perfect number? | 423 is NOT a perfect number |
| Is 423 a Mersenne Prime? | 423 is NOT a Mersenne prime |
| Is 423 a Fermat Prime? | 423 is NOT a Fermat prime |
| Is 423 a Fibonacci Prime? | 423 is NOT a Fibonacci prime |
| Is 423 a Partition Prime? | 423 is NOT a Partition prime |
| Is 423 a Pell Prime? | 423 is NOT a Pell prime |
| Prime Factors | Prime factors of 423 |
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423 in other Numerals
| 423 in Roman Numeral | CDXXIII |
| 423 in Chinese Numeral | 肆佰貳拾叄 |
| 423 in Egyptian Numeral | 𓍥𓎇𓏼 |
| 423 in Babylonian Numeral |   |
Roots and stuff for 423
| Is 423 a square number? | 423 is NOT a square number |
| Is 423 a cube number? | 423 is NOT a cube number |
| Square root of the number 423 | 20.566963801203 |
| Cube root of the number 423 | 7.5066607495043 |
Recreational math for 423
| Number 423 reversed | 324 |
| Sum of the digits | 9 |
| No of digits | 3 |