Names of 1604
| Nominal | 1604 |
| Cardinal | one thousand six hundred four |
| Ordinal | 1,604th |
| This number as US currency | one thousand six hundred four dollars |
| Is 1604 an odd number? | 1604 is NOT an odd number |
| Is 1604 an even number? | 1604 is an even number |
| Is 1604 a palindrome? | 1604 is NOT a palindrome number |
| Is 1604 a triangle number? | 1604 is NOT a triangle number |
1604 in other Bases
| Base 2 (Binary) | 110010001002 |
| Base 3 (Ternary) | 20121023 |
| Base 4 (Quaternary) | 1210104 |
| Base 5 (Quinary) | 224045 |
| Base 6 (Senary) | 112326 |
| Base 8 (Octal) | 31048 |
| Base 12 (Duodecimal) | B1812 |
| Base 16 (Hexadecimal) | 64416 |
| Base 20 (Vigesimal) | 40420 |
Primes and Factors tests for 1604
| Is 1604 a Prime Number? | 1604 is NOT a prime |
| Is 1604 a perfect number? | 1604 is NOT a perfect number |
| Is 1604 a Mersenne Prime? | 1604 is NOT a Mersenne prime |
| Is 1604 a Fermat Prime? | 1604 is NOT a Fermat prime |
| Is 1604 a Fibonacci Prime? | 1604 is NOT a Fibonacci prime |
| Is 1604 a Partition Prime? | 1604 is NOT a Partition prime |
| Is 1604 a Pell Prime? | 1604 is NOT a Pell prime |
| Prime Factors | Prime factors of 1604 |
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1604 in other Numerals
| 1604 in Roman Numeral | MDCIV |
| 1604 in Chinese Numeral | 壹仟陸佰肆 |
| 1604 in Egyptian Numeral | 𓆼𓍧𓏽 |
| 1604 in Babylonian Numeral |   |
Roots and stuff for 1604
| Is 1604 a square number? | 1604 is NOT a square number |
| Is 1604 a cube number? | 1604 is NOT a cube number |
| Square root of the number 1604 | 40.049968789002 |
| Cube root of the number 1604 | 11.705809567636 |
Recreational math for 1604
| Number 1604 reversed | 4061 |
| Sum of the digits | 11 |
| No of digits | 4 |