1640
Everything about the number 1640 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 1640
| Nominal | 1640 |
| Cardinal | one thousand six hundred forty |
| Ordinal | 1,640th |
| This number as US currency | one thousand six hundred forty dollars |
Properties (and some facts) of 1640
| Is 1640 an odd number? | 1640 is not an odd number |
| Is 1640 an even number? | 1640 is an even number |
| Is 1640 a palindrome? | 1640 is not a palindrome |
| Is 1640 a triangle number? | 1640 is not a triangle number |
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1640 in other bases
| Base 2 (Binary) | 11001101000 |
| Base 3 (Ternary) | 2020202 |
| Base 4 (Quaternary) | 121220 |
| Base 5 (Quinary) | 23030 |
| Base 6 (Senary) | 11332 |
| Base 8 (Octal) | 3150 |
| Base 12 (Duodecimal) | B48 |
| Base 16 (Hexadecimal) | 668 |
| Base 20 (Vigesimal) | 420 |
Primes and factors tests for 1640
| Is 1640 a prime number? | 1640 is not a prime number |
| Is 1640 a perfect number? | 1640 is not a perfect number |
| Is 1640 a Mersenne prime? | 1640 is not a Mersenne prime |
| Is 1640 a Fermat prime? | 1640 is not a Fermat prime |
| Is 1640 a Fibonacci prime? | 1640 is not a Fibonacci prime |
| Is 1640 a partition prime? | 1640 is not a partition prime |
| Is 1640 a Pell prime? | 1640 is not a Pell prime |
| Prime Factors | Prime factors of 1640 |
1640 in other numeral systems
| 1640 in Roman numerals | MDCXL |
| 1640 in Chinese numerals | 壹仟陸佰肆拾 |
| 1640 in Babylonian numerals |   |
| 1640 in Egyptian numerals | 𓆼𓍧𓎉 |
Roots and squares for 1640
| Is 1640 a square number? | 1640 is not a square number |
| Is 1640 a cube number? | 1640 is not a cube number |
| Square root of 1640 | 40.496913462633 |
| Cube root of 1640 | 11.792737079941 |
Recreational math for 1640
| Number 1640 reversed | 0461 |
| Sum of the digits | 11 |
| Number of digits | 4 |
Arithmetic tables for 1640
Other pages about 1640
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