Names of 680
| Nominal | 680 |
| Cardinal | six hundred eighty |
| Ordinal | 680th |
| This number as US currency | six hundred eighty dollars |
| Is 680 an odd number? | 680 is NOT an odd number |
| Is 680 an even number? | 680 is an even number |
| Is 680 a palindrome? | 680 is NOT a palindrome number |
| Is 680 a triangle number? | 680 is NOT a triangle number |
680 in other Bases
| Base 2 (Binary) | 10101010002 |
| Base 3 (Ternary) | 2210123 |
| Base 4 (Quaternary) | 222204 |
| Base 5 (Quinary) | 102105 |
| Base 6 (Senary) | 30526 |
| Base 8 (Octal) | 12508 |
| Base 12 (Duodecimal) | 48812 |
| Base 16 (Hexadecimal) | 2A816 |
| Base 20 (Vigesimal) | 1E020 |
Primes and Factors tests for 680
| Is 680 a Prime Number? | 680 is NOT a prime |
| Is 680 a perfect number? | 680 is NOT a perfect number |
| Is 680 a Mersenne Prime? | 680 is NOT a Mersenne prime |
| Is 680 a Fermat Prime? | 680 is NOT a Fermat prime |
| Is 680 a Fibonacci Prime? | 680 is NOT a Fibonacci prime |
| Is 680 a Partition Prime? | 680 is NOT a Partition prime |
| Is 680 a Pell Prime? | 680 is NOT a Pell prime |
| Prime Factors | Prime factors of 680 |
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680 in other Numerals
| 680 in Roman Numeral | DCLXXX |
| 680 in Chinese Numeral | 陸佰捌拾 |
| 680 in Egyptian Numeral | 𓍧𓎍 |
| 680 in Babylonian Numeral |   |
Roots and stuff for 680
| Is 680 a square number? | 680 is NOT a square number |
| Is 680 a cube number? | 680 is NOT a cube number |
| Square root of the number 680 | 26.076809620811 |
| Cube root of the number 680 | 8.7936593443164 |
Recreational math for 680
| Number 680 reversed | 086 |
| Sum of the digits | 14 |
| No of digits | 3 |