121728
Everything about the number 121728 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 121728
| Nominal | 121728 |
| Cardinal | one hundred twenty-one thousand seven hundred twenty-eight |
| Ordinal | 121,728th |
| This number as US currency | one hundred twenty-one thousand seven hundred twenty-eight dollars |
Properties (and some facts) of 121728
| Is 121728 an odd number? | 121728 is not an odd number |
| Is 121728 an even number? | 121728 is an even number |
| Is 121728 a palindrome? | 121728 is not a palindrome |
| Is 121728 a triangle number? | 121728 is not a triangle number |
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121728 in other bases
| Base 2 (Binary) | 11101101110000000 |
| Base 3 (Ternary) | 20011222110 |
| Base 4 (Quaternary) | 131232000 |
| Base 5 (Quinary) | 12343403 |
| Base 6 (Senary) | 2335320 |
| Base 8 (Octal) | 355600 |
| Base 12 (Duodecimal) | 5A540 |
| Base 16 (Hexadecimal) | 1DB80 |
| Base 20 (Vigesimal) | F468 |
Primes and factors tests for 121728
| Is 121728 a prime number? | 121728 is not a prime number |
| Is 121728 a perfect number? | 121728 is not a perfect number |
| Is 121728 a Mersenne prime? | 121728 is not a Mersenne prime |
| Is 121728 a Fermat prime? | 121728 is not a Fermat prime |
| Is 121728 a Fibonacci prime? | 121728 is not a Fibonacci prime |
| Is 121728 a partition prime? | 121728 is not a partition prime |
| Is 121728 a Pell prime? | 121728 is not a Pell prime |
| Prime Factors | Prime factors of 121728 |
121728 in other numeral systems
| 121728 in Roman numerals | CXXMDCCXXVIII |
| 121728 in Chinese numerals | 壹拾萬貳萬壹仟柒佰貳拾捌 |
| 121728 in Babylonian numerals |   |
| 121728 in Egyptian numerals | 𓆐𓂮𓆼𓍨𓎇𓐁 |
Roots and squares for 121728
| Is 121728 a square number? | 121728 is not a square number |
| Is 121728 a cube number? | 121728 is not a cube number |
| Square root of 121728 | 348.8953997977 |
| Cube root of 121728 | 49.559870420299 |
Recreational math for 121728
| Number 121728 reversed | 827121 |
| Sum of the digits | 21 |
| Number of digits | 6 |
Other pages about 121728
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