Names of 12661
| Nominal | 12661 |
| Cardinal | twelve thousand six hundred sixty-one |
| Ordinal | 12,661st |
| This number as US currency | twelve thousand six hundred sixty-one dollars |
| Is 12661 an odd number? | 12661 is an odd number |
| Is 12661 an even number? | 12661 is NOT an even number |
| Is 12661 a palindrome? | 12661 is NOT a palindrome number |
| Is 12661 a triangle number? | 12661 is NOT a triangle number |
12661 in other Bases
| Base 2 (Binary) | 110001011101012 |
| Base 3 (Ternary) | 1221002213 |
| Base 4 (Quaternary) | 30113114 |
| Base 5 (Quinary) | 4011215 |
| Base 6 (Senary) | 1343416 |
| Base 8 (Octal) | 305658 |
| Base 12 (Duodecimal) | 73B112 |
| Base 16 (Hexadecimal) | 317516 |
| Base 20 (Vigesimal) | 1BD120 |
Primes and Factors tests for 12661
| Is 12661 a Prime Number? | 12661 is NOT a prime |
| Is 12661 a perfect number? | 12661 is NOT a perfect number |
| Is 12661 a Mersenne Prime? | 12661 is NOT a Mersenne prime |
| Is 12661 a Fermat Prime? | 12661 is NOT a Fermat prime |
| Is 12661 a Fibonacci Prime? | 12661 is NOT a Fibonacci prime |
| Is 12661 a Partition Prime? | 12661 is NOT a Partition prime |
| Is 12661 a Pell Prime? | 12661 is NOT a Pell prime |
| Prime Factors | Prime factors of 12661 |
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12661 in other Numerals
| 12661 in Roman Numeral | XMMDCLXI |
| 12661 in Chinese Numeral | 壹萬貳仟陸佰陸拾壹 |
| 12661 in Egyptian Numeral | 𓂭𓆽𓍧𓎋𓏺 |
| 12661 in Babylonian Numeral |    |
Roots and stuff for 12661
| Is 12661 a square number? | 12661 is NOT a square number |
| Is 12661 a cube number? | 12661 is NOT a cube number |
| Square root of the number 12661 | 112.52110913069 |
| Cube root of the number 12661 | 23.307158858032 |
Recreational math for 12661
| Number 12661 reversed | 16621 |
| Sum of the digits | 16 |
| No of digits | 5 |