Names of 1649
| Nominal | 1649 |
| Cardinal | one thousand six hundred forty-nine |
| Ordinal | 1,649th |
| This number as US currency | one thousand six hundred forty-nine dollars |
| Is 1649 an odd number? | 1649 is an odd number |
| Is 1649 an even number? | 1649 is NOT an even number |
| Is 1649 a palindrome? | 1649 is NOT a palindrome number |
| Is 1649 a triangle number? | 1649 is NOT a triangle number |
1649 in other Bases
| Base 2 (Binary) | 110011100012 |
| Base 3 (Ternary) | 20210023 |
| Base 4 (Quaternary) | 1213014 |
| Base 5 (Quinary) | 230445 |
| Base 6 (Senary) | 113456 |
| Base 8 (Octal) | 31618 |
| Base 12 (Duodecimal) | B5512 |
| Base 16 (Hexadecimal) | 67116 |
| Base 20 (Vigesimal) | 42920 |
Primes and Factors tests for 1649
| Is 1649 a Prime Number? | 1649 is NOT a prime |
| Is 1649 a perfect number? | 1649 is NOT a perfect number |
| Is 1649 a Mersenne Prime? | 1649 is NOT a Mersenne prime |
| Is 1649 a Fermat Prime? | 1649 is NOT a Fermat prime |
| Is 1649 a Fibonacci Prime? | 1649 is NOT a Fibonacci prime |
| Is 1649 a Partition Prime? | 1649 is NOT a Partition prime |
| Is 1649 a Pell Prime? | 1649 is NOT a Pell prime |
| Prime Factors | Prime factors of 1649 |
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1649 in other Numerals
| 1649 in Roman Numeral | MDCXLIX |
| 1649 in Chinese Numeral | 壹仟陸佰肆拾玖 |
| 1649 in Egyptian Numeral | 𓆼𓍧𓎉𓐂 |
| 1649 in Babylonian Numeral |   |
Roots and stuff for 1649
| Is 1649 a square number? | 1649 is NOT a square number |
| Is 1649 a cube number? | 1649 is NOT a cube number |
| Square root of the number 1649 | 40.607881008494 |
| Cube root of the number 1649 | 11.814269818713 |
Recreational math for 1649
| Number 1649 reversed | 9461 |
| Sum of the digits | 20 |
| No of digits | 4 |