Names of 998990
| Nominal | 998990 |
| Cardinal | nine hundred ninety-eight thousand nine hundred ninety |
| Ordinal | 998,990th |
| This number as US currency | nine hundred ninety-eight thousand nine hundred ninety dollars |
| Is 998990 an odd number? | 998990 is NOT an odd number |
| Is 998990 an even number? | 998990 is an even number |
| Is 998990 a palindrome? | 998990 is NOT a palindrome number |
| Is 998990 a triangle number? | 998990 is NOT a triangle number |
998990 in other Bases
| Base 2 (Binary) | 111100111110010011102 |
| Base 3 (Ternary) | 12122021001223 |
| Base 4 (Quaternary) | 33033210324 |
| Base 5 (Quinary) | 2234314305 |
| Base 6 (Senary) | 332245426 |
| Base 8 (Octal) | 36371168 |
| Base 12 (Duodecimal) | 40215212 |
| Base 16 (Hexadecimal) | F3E4E16 |
| Base 20 (Vigesimal) | 64H9A20 |
Primes and Factors tests for 998990
| Is 998990 a Prime Number? | 998990 is NOT a prime |
| Is 998990 a perfect number? | 998990 is NOT a perfect number |
| Is 998990 a Mersenne Prime? | 998990 is NOT a Mersenne prime |
| Is 998990 a Fermat Prime? | 998990 is NOT a Fermat prime |
| Is 998990 a Fibonacci Prime? | 998990 is NOT a Fibonacci prime |
| Is 998990 a Partition Prime? | 998990 is NOT a Partition prime |
| Is 998990 a Pell Prime? | 998990 is NOT a Pell prime |
| Prime Factors | Prime factors of 998990 |
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998990 in other Numerals
| 998990 in Roman Numeral | CMXCVMMMCMXC |
| 998990 in Chinese Numeral | 玖拾萬玖萬捌仟玖佰玖拾 |
| 998990 in Egyptian Numeral | 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂵𓇃𓍪𓎎 |
| 998990 in Babylonian Numeral |     |
Roots and stuff for 998990
| Is 998990 a square number? | 998990 is NOT a square number |
| Is 998990 a cube number? | 998990 is NOT a cube number |
| Square root of the number 998990 | 999.49487242307 |
| Cube root of the number 998990 | 99.966321992525 |
Recreational math for 998990
| Number 998990 reversed | 099899 |
| Sum of the digits | 44 |
| No of digits | 6 |