Names of 19998
| Nominal | 19998 |
| Cardinal | nineteen thousand nine hundred ninety-eight |
| Ordinal | 19,998th |
| This number as US currency | nineteen thousand nine hundred ninety-eight dollars |
| Is 19998 an odd number? | 19998 is NOT an odd number |
| Is 19998 an even number? | 19998 is an even number |
| Is 19998 a palindrome? | 19998 is NOT a palindrome number |
| Is 19998 a triangle number? | 19998 is NOT a triangle number |
19998 in other Bases
| Base 2 (Binary) | 1001110000111102 |
| Base 3 (Ternary) | 10001022003 |
| Base 4 (Quaternary) | 103201324 |
| Base 5 (Quinary) | 11144435 |
| Base 6 (Senary) | 2323306 |
| Base 8 (Octal) | 470368 |
| Base 12 (Duodecimal) | B6A612 |
| Base 16 (Hexadecimal) | 4E1E16 |
| Base 20 (Vigesimal) | 29JI20 |
Primes and Factors tests for 19998
| Is 19998 a Prime Number? | 19998 is NOT a prime |
| Is 19998 a perfect number? | 19998 is NOT a perfect number |
| Is 19998 a Mersenne Prime? | 19998 is NOT a Mersenne prime |
| Is 19998 a Fermat Prime? | 19998 is NOT a Fermat prime |
| Is 19998 a Fibonacci Prime? | 19998 is NOT a Fibonacci prime |
| Is 19998 a Partition Prime? | 19998 is NOT a Partition prime |
| Is 19998 a Pell Prime? | 19998 is NOT a Pell prime |
| Prime Factors | Prime factors of 19998 |
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19998 in other Numerals
| 19998 in Roman Numeral | XMXCMXCVIII |
| 19998 in Chinese Numeral | 壹萬玖仟玖佰玖拾捌 |
| 19998 in Egyptian Numeral | 𓂭𓇄𓍪𓎎𓐁 |
| 19998 in Babylonian Numeral |    |
Roots and stuff for 19998
| Is 19998 a square number? | 19998 is NOT a square number |
| Is 19998 a cube number? | 19998 is NOT a cube number |
| Square root of the number 19998 | 141.41428499271 |
| Cube root of the number 19998 | 27.143271329915 |
Recreational math for 19998
| Number 19998 reversed | 89991 |
| Sum of the digits | 36 |
| No of digits | 5 |