Names of 18990
| Nominal | 18990 |
| Cardinal | eighteen thousand nine hundred ninety |
| Ordinal | 18,990th |
| This number as US currency | eighteen thousand nine hundred ninety dollars |
| Is 18990 an odd number? | 18990 is NOT an odd number |
| Is 18990 an even number? | 18990 is an even number |
| Is 18990 a palindrome? | 18990 is NOT a palindrome number |
| Is 18990 a triangle number? | 18990 is NOT a triangle number |
18990 in other Bases
| Base 2 (Binary) | 1001010001011102 |
| Base 3 (Ternary) | 2220011003 |
| Base 4 (Quaternary) | 102202324 |
| Base 5 (Quinary) | 11014305 |
| Base 6 (Senary) | 2235306 |
| Base 8 (Octal) | 450568 |
| Base 12 (Duodecimal) | ABA612 |
| Base 16 (Hexadecimal) | 4A2E16 |
| Base 20 (Vigesimal) | 279A20 |
Primes and Factors tests for 18990
| Is 18990 a Prime Number? | 18990 is NOT a prime |
| Is 18990 a perfect number? | 18990 is NOT a perfect number |
| Is 18990 a Mersenne Prime? | 18990 is NOT a Mersenne prime |
| Is 18990 a Fermat Prime? | 18990 is NOT a Fermat prime |
| Is 18990 a Fibonacci Prime? | 18990 is NOT a Fibonacci prime |
| Is 18990 a Partition Prime? | 18990 is NOT a Partition prime |
| Is 18990 a Pell Prime? | 18990 is NOT a Pell prime |
| Prime Factors | Prime factors of 18990 |
Sponsored
18990 in other Numerals
| 18990 in Roman Numeral | XVMMMCMXC |
| 18990 in Chinese Numeral | 壹萬捌仟玖佰玖拾 |
| 18990 in Egyptian Numeral | 𓂭𓇃𓍪𓎎 |
| 18990 in Babylonian Numeral |    |
Roots and stuff for 18990
| Is 18990 a square number? | 18990 is NOT a square number |
| Is 18990 a cube number? | 18990 is NOT a cube number |
| Square root of the number 18990 | 137.80420893427 |
| Cube root of the number 18990 | 26.679334259279 |
Recreational math for 18990
| Number 18990 reversed | 09981 |
| Sum of the digits | 27 |
| No of digits | 5 |