Names of 9990
| Nominal | 9990 |
| Cardinal | nine thousand nine hundred ninety |
| Ordinal | 9,990th |
| This number as US currency | nine thousand nine hundred ninety dollars |
| Is 9990 an odd number? | 9990 is NOT an odd number |
| Is 9990 an even number? | 9990 is an even number |
| Is 9990 a palindrome? | 9990 is NOT a palindrome number |
| Is 9990 a triangle number? | 9990 is NOT a triangle number |
9990 in other Bases
| Base 2 (Binary) | 100111000001102 |
| Base 3 (Ternary) | 1112010003 |
| Base 4 (Quaternary) | 21300124 |
| Base 5 (Quinary) | 3044305 |
| Base 6 (Senary) | 1141306 |
| Base 8 (Octal) | 234068 |
| Base 12 (Duodecimal) | 594612 |
| Base 16 (Hexadecimal) | 270616 |
| Base 20 (Vigesimal) | 14JA20 |
Primes and Factors tests for 9990
| Is 9990 a Prime Number? | 9990 is NOT a prime |
| Is 9990 a perfect number? | 9990 is NOT a perfect number |
| Is 9990 a Mersenne Prime? | 9990 is NOT a Mersenne prime |
| Is 9990 a Fermat Prime? | 9990 is NOT a Fermat prime |
| Is 9990 a Fibonacci Prime? | 9990 is NOT a Fibonacci prime |
| Is 9990 a Partition Prime? | 9990 is NOT a Partition prime |
| Is 9990 a Pell Prime? | 9990 is NOT a Pell prime |
| Prime Factors | Prime factors of 9990 |
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9990 in other Numerals
| 9990 in Roman Numeral | MXCMXC |
| 9990 in Chinese Numeral | 玖仟玖佰玖拾 |
| 9990 in Egyptian Numeral | 𓇄𓍪𓎎 |
| 9990 in Babylonian Numeral |    |
Roots and stuff for 9990
| Is 9990 a square number? | 9990 is NOT a square number |
| Is 9990 a cube number? | 9990 is NOT a cube number |
| Square root of the number 9990 | 99.949987493746 |
| Cube root of the number 9990 | 21.537163056205 |
Recreational math for 9990
| Number 9990 reversed | 0999 |
| Sum of the digits | 27 |
| No of digits | 4 |