Names of 655
| Nominal | 655 |
| Cardinal | six hundred fifty-five |
| Ordinal | 655th |
| This number as US currency | six hundred fifty-five dollars |
| Is 655 an odd number? | 655 is an odd number |
| Is 655 an even number? | 655 is NOT an even number |
| Is 655 a palindrome? | 655 is NOT a palindrome number |
| Is 655 a triangle number? | 655 is NOT a triangle number |
655 in other Bases
| Base 2 (Binary) | 10100011112 |
| Base 3 (Ternary) | 2200213 |
| Base 4 (Quaternary) | 220334 |
| Base 5 (Quinary) | 101105 |
| Base 6 (Senary) | 30116 |
| Base 8 (Octal) | 12178 |
| Base 12 (Duodecimal) | 46712 |
| Base 16 (Hexadecimal) | 28F16 |
| Base 20 (Vigesimal) | 1CF20 |
Primes and Factors tests for 655
| Is 655 a Prime Number? | 655 is NOT a prime |
| Is 655 a perfect number? | 655 is NOT a perfect number |
| Is 655 a Mersenne Prime? | 655 is NOT a Mersenne prime |
| Is 655 a Fermat Prime? | 655 is NOT a Fermat prime |
| Is 655 a Fibonacci Prime? | 655 is NOT a Fibonacci prime |
| Is 655 a Partition Prime? | 655 is NOT a Partition prime |
| Is 655 a Pell Prime? | 655 is NOT a Pell prime |
| Prime Factors | Prime factors of 655 |
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655 in other Numerals
| 655 in Roman Numeral | DCLV |
| 655 in Chinese Numeral | 陸佰伍拾伍 |
| 655 in Egyptian Numeral | 𓍧𓎊𓏾 |
| 655 in Babylonian Numeral |   |
Roots and stuff for 655
| Is 655 a square number? | 655 is NOT a square number |
| Is 655 a cube number? | 655 is NOT a cube number |
| Square root of the number 655 | 25.592967784139 |
| Cube root of the number 655 | 8.6845456027172 |
Recreational math for 655
| Number 655 reversed | 556 |
| Sum of the digits | 16 |
| No of digits | 3 |