Names of 1812
| Nominal | 1812 |
| Cardinal | one thousand eight hundred twelve |
| Ordinal | 1,812th |
| This number as US currency | one thousand eight hundred twelve dollars |
| Is 1812 an odd number? | 1812 is NOT an odd number |
| Is 1812 an even number? | 1812 is an even number |
| Is 1812 a palindrome? | 1812 is NOT a palindrome number |
| Is 1812 a triangle number? | 1812 is NOT a triangle number |
1812 in other Bases
| Base 2 (Binary) | 111000101002 |
| Base 3 (Ternary) | 21110103 |
| Base 4 (Quaternary) | 1301104 |
| Base 5 (Quinary) | 242225 |
| Base 6 (Senary) | 122206 |
| Base 8 (Octal) | 34248 |
| Base 12 (Duodecimal) | 107012 |
| Base 16 (Hexadecimal) | 71416 |
| Base 20 (Vigesimal) | 4AC20 |
Primes and Factors tests for 1812
| Is 1812 a Prime Number? | 1812 is NOT a prime |
| Is 1812 a perfect number? | 1812 is NOT a perfect number |
| Is 1812 a Mersenne Prime? | 1812 is NOT a Mersenne prime |
| Is 1812 a Fermat Prime? | 1812 is NOT a Fermat prime |
| Is 1812 a Fibonacci Prime? | 1812 is NOT a Fibonacci prime |
| Is 1812 a Partition Prime? | 1812 is NOT a Partition prime |
| Is 1812 a Pell Prime? | 1812 is NOT a Pell prime |
| Prime Factors | Prime factors of 1812 |
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1812 in other Numerals
| 1812 in Roman Numeral | MDCCCXII |
| 1812 in Chinese Numeral | 壹仟捌佰壹拾貳 |
| 1812 in Egyptian Numeral | 𓆼𓍩𓎆𓏻 |
| 1812 in Babylonian Numeral |   |
Roots and stuff for 1812
| Is 1812 a square number? | 1812 is NOT a square number |
| Is 1812 a cube number? | 1812 is NOT a cube number |
| Square root of the number 1812 | 42.567593307586 |
| Cube root of the number 1812 | 12.191376150387 |
Recreational math for 1812
| Number 1812 reversed | 2181 |
| Sum of the digits | 12 |
| No of digits | 4 |