1800
Everything about the number 1800 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 1800
| Nominal | 1800 |
| Cardinal | one thousand eight hundred |
| Ordinal | 1,800th |
| This number as US currency | one thousand eight hundred dollars |
Properties (and some facts) of 1800
| Is 1800 an odd number? | 1800 is not an odd number |
| Is 1800 an even number? | 1800 is an even number |
| Is 1800 a palindrome? | 1800 is not a palindrome |
| Is 1800 a triangle number? | 1800 is not a triangle number |
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1800 in other bases
| Base 2 (Binary) | 11100001000 |
| Base 3 (Ternary) | 2110200 |
| Base 4 (Quaternary) | 130020 |
| Base 5 (Quinary) | 24200 |
| Base 6 (Senary) | 12200 |
| Base 8 (Octal) | 3410 |
| Base 12 (Duodecimal) | 1060 |
| Base 16 (Hexadecimal) | 708 |
| Base 20 (Vigesimal) | 4A0 |
Primes and factors tests for 1800
| Is 1800 a prime number? | 1800 is not a prime number |
| Is 1800 a perfect number? | 1800 is not a perfect number |
| Is 1800 a Mersenne prime? | 1800 is not a Mersenne prime |
| Is 1800 a Fermat prime? | 1800 is not a Fermat prime |
| Is 1800 a Fibonacci prime? | 1800 is not a Fibonacci prime |
| Is 1800 a partition prime? | 1800 is not a partition prime |
| Is 1800 a Pell prime? | 1800 is not a Pell prime |
| Prime Factors | Prime factors of 1800 |
1800 in other numeral systems
| 1800 in Roman numerals | MDCCC |
| 1800 in Chinese numerals | 壹仟捌佰 |
| 1800 in Babylonian numerals |  |
| 1800 in Egyptian numerals | 𓆼𓍩 |
Roots and squares for 1800
| Is 1800 a square number? | 1800 is not a square number |
| Is 1800 a cube number? | 1800 is not a cube number |
| Square root of 1800 | 42.426406871193 |
| Cube root of 1800 | 12.164403991147 |
Recreational math for 1800
| Number 1800 reversed | 0081 |
| Sum of the digits | 9 |
| Number of digits | 4 |
Arithmetic tables for 1800
Other pages about 1800
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