981221
Everything about the number 981221 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 981221
| Nominal | 981221 |
| Cardinal | nine hundred eighty-one thousand two hundred twenty-one |
| Ordinal | 981,221st |
| This number as US currency | nine hundred eighty-one thousand two hundred twenty-one dollars |
Properties (and some facts) of 981221
| Is 981221 an odd number? | 981221 is an odd number |
| Is 981221 an even number? | 981221 is not an even number |
| Is 981221 a palindrome? | 981221 is not a palindrome |
| Is 981221 a triangle number? | 981221 is not a triangle number |
981221 in other bases
| Base 2 (Binary) | 11101111100011100101 |
| Base 3 (Ternary) | 1211211222112 |
| Base 4 (Quaternary) | 3233203211 |
| Base 5 (Quinary) | 222344341 |
| Base 6 (Senary) | 33010405 |
| Base 8 (Octal) | 3574345 |
| Base 12 (Duodecimal) | 3B3A05 |
| Base 16 (Hexadecimal) | EF8E5 |
| Base 20 (Vigesimal) | 62D11 |
Primes and factors tests for 981221
| Is 981221 a prime number? | 981221 is a prime number |
| Is 981221 a perfect number? | 981221 is not a perfect number |
| Is 981221 a Mersenne prime? | 981221 is not a Mersenne prime |
| Is 981221 a Fermat prime? | 981221 is not a Fermat prime |
| Is 981221 a Fibonacci prime? | 981221 is not a Fibonacci prime |
| Is 981221 a partition prime? | 981221 is not a partition prime |
| Is 981221 a Pell prime? | 981221 is not a Pell prime |
| Prime Factors | Prime factors of 981221 |
981221 in other numeral systems
| 981221 in Roman numerals | CMLXXXMCCXXI |
| 981221 in Chinese numerals | 玖拾萬捌萬壹仟貳佰貳拾壹 |
| 981221 in Babylonian numerals |     |
| 981221 in Egyptian numerals | 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂴𓆼𓍣𓎇𓏺 |
Roots and squares for 981221
| Is 981221 a square number? | 981221 is not a square number |
| Is 981221 a cube number? | 981221 is not a cube number |
| Square root of 981221 | 990.5659998203 |
| Cube root of 981221 | 99.370073592524 |
Recreational math for 981221
| Number 981221 reversed | 122189 |
| Sum of the digits | 23 |
| Number of digits | 6 |