Names of 28121
| Nominal | 28121 |
| Cardinal | twenty-eight thousand one hundred twenty-one |
| Ordinal | 28,121st |
| This number as US currency | twenty-eight thousand one hundred twenty-one dollars |
| Is 28121 an odd number? | 28121 is an odd number |
| Is 28121 an even number? | 28121 is NOT an even number |
| Is 28121 a palindrome? | 28121 is NOT a palindrome number |
| Is 28121 a triangle number? | 28121 is NOT a triangle number |
28121 in other Bases
| Base 2 (Binary) | 1101101110110012 |
| Base 3 (Ternary) | 11021201123 |
| Base 4 (Quaternary) | 123131214 |
| Base 5 (Quinary) | 13444415 |
| Base 6 (Senary) | 3341056 |
| Base 8 (Octal) | 667318 |
| Base 12 (Duodecimal) | 1433512 |
| Base 16 (Hexadecimal) | 6DD916 |
| Base 20 (Vigesimal) | 3A6120 |
Primes and Factors tests for 28121
| Is 28121 a Prime Number? | 28121 is NOT a prime |
| Is 28121 a perfect number? | 28121 is NOT a perfect number |
| Is 28121 a Mersenne Prime? | 28121 is NOT a Mersenne prime |
| Is 28121 a Fermat Prime? | 28121 is NOT a Fermat prime |
| Is 28121 a Fibonacci Prime? | 28121 is NOT a Fibonacci prime |
| Is 28121 a Partition Prime? | 28121 is NOT a Partition prime |
| Is 28121 a Pell Prime? | 28121 is NOT a Pell prime |
| Prime Factors | Prime factors of 28121 |
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28121 in other Numerals
| 28121 in Roman Numeral | XXVMMMCXXI |
| 28121 in Chinese Numeral | 貳萬捌仟壹佰貳拾壹 |
| 28121 in Egyptian Numeral | 𓂮𓇃𓍢𓎇𓏺 |
| 28121 in Babylonian Numeral |    |
Roots and stuff for 28121
| Is 28121 a square number? | 28121 is NOT a square number |
| Is 28121 a cube number? | 28121 is NOT a cube number |
| Square root of the number 28121 | 167.69317219255 |
| Cube root of the number 28121 | 30.409568202374 |
Recreational math for 28121
| Number 28121 reversed | 12182 |
| Sum of the digits | 14 |
| No of digits | 5 |