Names of 90121
| Nominal | 90121 |
| Cardinal | ninety thousand one hundred twenty-one |
| Ordinal | 90,121st |
| This number as US currency | ninety thousand one hundred twenty-one dollars |
| Is 90121 an odd number? | 90121 is an odd number |
| Is 90121 an even number? | 90121 is NOT an even number |
| Is 90121 a palindrome? | 90121 is NOT a palindrome number |
| Is 90121 a triangle number? | 90121 is NOT a triangle number |
90121 in other Bases
| Base 2 (Binary) | 101100000000010012 |
| Base 3 (Ternary) | 111201212113 |
| Base 4 (Quaternary) | 1120000214 |
| Base 5 (Quinary) | 103404415 |
| Base 6 (Senary) | 15331216 |
| Base 8 (Octal) | 2600118 |
| Base 12 (Duodecimal) | 441A112 |
| Base 16 (Hexadecimal) | 1600916 |
| Base 20 (Vigesimal) | B56120 |
Primes and Factors tests for 90121
| Is 90121 a Prime Number? | 90121 is a prime |
| Is 90121 a perfect number? | 90121 is NOT a perfect number |
| Is 90121 a Mersenne Prime? | 90121 is NOT a Mersenne prime |
| Is 90121 a Fermat Prime? | 90121 is NOT a Fermat prime |
| Is 90121 a Fibonacci Prime? | 90121 is NOT a Fibonacci prime |
| Is 90121 a Partition Prime? | 90121 is NOT a Partition prime |
| Is 90121 a Pell Prime? | 90121 is NOT a Pell prime |
| Prime Factors | Prime factors of 90121 |
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90121 in other Numerals
| 90121 in Roman Numeral | XCCXXI |
| 90121 in Chinese Numeral | 玖萬壹佰貳拾壹 |
| 90121 in Egyptian Numeral | 𓂵𓍢𓎇𓏺 |
| 90121 in Babylonian Numeral |    |
Roots and stuff for 90121
| Is 90121 a square number? | 90121 is NOT a square number |
| Is 90121 a cube number? | 90121 is NOT a cube number |
| Square root of the number 90121 | 300.20159892979 |
| Cube root of the number 90121 | 44.834121804363 |
Recreational math for 90121
| Number 90121 reversed | 12109 |
| Sum of the digits | 13 |
| No of digits | 5 |