Names of 12840
| Nominal | 12840 |
| Cardinal | twelve thousand eight hundred forty |
| Ordinal | 12,840th |
| This number as US currency | twelve thousand eight hundred forty dollars |
| Is 12840 an odd number? | 12840 is NOT an odd number |
| Is 12840 an even number? | 12840 is an even number |
| Is 12840 a palindrome? | 12840 is NOT a palindrome number |
| Is 12840 a triangle number? | 12840 is NOT a triangle number |
12840 in other Bases
| Base 2 (Binary) | 110010001010002 |
| Base 3 (Ternary) | 1221211203 |
| Base 4 (Quaternary) | 30202204 |
| Base 5 (Quinary) | 4023305 |
| Base 6 (Senary) | 1352406 |
| Base 8 (Octal) | 310508 |
| Base 12 (Duodecimal) | 752012 |
| Base 16 (Hexadecimal) | 322816 |
| Base 20 (Vigesimal) | 1C2020 |
Primes and Factors tests for 12840
| Is 12840 a Prime Number? | 12840 is NOT a prime |
| Is 12840 a perfect number? | 12840 is NOT a perfect number |
| Is 12840 a Mersenne Prime? | 12840 is NOT a Mersenne prime |
| Is 12840 a Fermat Prime? | 12840 is NOT a Fermat prime |
| Is 12840 a Fibonacci Prime? | 12840 is NOT a Fibonacci prime |
| Is 12840 a Partition Prime? | 12840 is NOT a Partition prime |
| Is 12840 a Pell Prime? | 12840 is NOT a Pell prime |
| Prime Factors | Prime factors of 12840 |
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12840 in other Numerals
| 12840 in Roman Numeral | XMMDCCCXL |
| 12840 in Chinese Numeral | 壹萬貳仟捌佰肆拾 |
| 12840 in Egyptian Numeral | 𓂭𓆽𓍩𓎉 |
| 12840 in Babylonian Numeral |   |
Roots and stuff for 12840
| Is 12840 a square number? | 12840 is NOT a square number |
| Is 12840 a cube number? | 12840 is NOT a cube number |
| Square root of the number 12840 | 113.31372379372 |
| Cube root of the number 12840 | 23.416483382064 |
Recreational math for 12840
| Number 12840 reversed | 04821 |
| Sum of the digits | 15 |
| No of digits | 5 |