Names of 999999998
| Nominal | 999999998 |
| Cardinal | nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-eight |
| Ordinal | 999,999,998th |
| This number as US currency | nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-eight dollars |
| Is 999999998 an odd number? | 999999998 is NOT an odd number |
| Is 999999998 an even number? | 999999998 is an even number |
| Is 999999998 a palindrome? | 999999998 is NOT a palindrome number |
| Is 999999998 a triangle number? | 999999998 is NOT a triangle number |
999999998 in other Bases
| Base 2 (Binary) | 1110111001101011001001111111102 |
| Base 3 (Ternary) | 21202002000210022223 |
| Base 4 (Quaternary) | 3232122302133324 |
| Base 5 (Quinary) | 40214444444435 |
| Base 6 (Senary) | 2431212453426 |
| Base 8 (Octal) | 73465447768 |
| Base 12 (Duodecimal) | 23AA9385212 |
| Base 16 (Hexadecimal) | 3B9AC9FE16 |
| Base 20 (Vigesimal) | FC9JJJI20 |
Primes and Factors tests for 999999998
| Is 999999998 a perfect number? | 999999998 is NOT a perfect number |
| Is 999999998 a Mersenne Prime? | 999999998 is NOT a Mersenne prime |
| Is 999999998 a Fermat Prime? | 999999998 is NOT a Fermat prime |
| Is 999999998 a Fibonacci Prime? | 999999998 is NOT a Fibonacci prime |
| Is 999999998 a Partition Prime? | 999999998 is NOT a Partition prime |
| Is 999999998 a Pell Prime? | 999999998 is NOT a Pell prime |
| Prime Factors | Prime factors of 999999998 |
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999999998 in other Numerals
| 999999998 in Roman Numeral | CMXCMXCMXCVIII |
| 999999998 in Chinese Numeral | 玖拾萬玖萬玖仟玖佰玖拾捌 |
| 999999998 in Babylonian Numeral |       |
Roots and stuff for 999999998
| Is 999999998 a square number? | 999999998 is NOT a square number |
| Is 999999998 a cube number? | 999999998 is NOT a cube number |
| Square root of the number 999999998 | 31622.776570061 |
| Cube root of the number 999999998 | 999.99999933333 |
Recreational math for 999999998
| Number 999999998 reversed | 899999999 |
| Sum of the digits | 80 |
| No of digits | 9 |