Names of 18420
| Nominal | 18420 |
| Cardinal | eighteen thousand four hundred twenty |
| Ordinal | 18,420th |
| This number as US currency | eighteen thousand four hundred twenty dollars |
| Is 18420 an odd number? | 18420 is NOT an odd number |
| Is 18420 an even number? | 18420 is an even number |
| Is 18420 a palindrome? | 18420 is NOT a palindrome number |
| Is 18420 a triangle number? | 18420 is NOT a triangle number |
18420 in other Bases
| Base 2 (Binary) | 1000111111101002 |
| Base 3 (Ternary) | 2210210203 |
| Base 4 (Quaternary) | 101333104 |
| Base 5 (Quinary) | 10421405 |
| Base 6 (Senary) | 2211406 |
| Base 8 (Octal) | 437648 |
| Base 12 (Duodecimal) | A7B012 |
| Base 16 (Hexadecimal) | 47F416 |
| Base 20 (Vigesimal) | 261020 |
Primes and Factors tests for 18420
| Is 18420 a Prime Number? | 18420 is NOT a prime |
| Is 18420 a perfect number? | 18420 is NOT a perfect number |
| Is 18420 a Mersenne Prime? | 18420 is NOT a Mersenne prime |
| Is 18420 a Fermat Prime? | 18420 is NOT a Fermat prime |
| Is 18420 a Fibonacci Prime? | 18420 is NOT a Fibonacci prime |
| Is 18420 a Partition Prime? | 18420 is NOT a Partition prime |
| Is 18420 a Pell Prime? | 18420 is NOT a Pell prime |
| Prime Factors | Prime factors of 18420 |
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18420 in other Numerals
| 18420 in Roman Numeral | XVMMMCDXX |
| 18420 in Chinese Numeral | 壹萬捌仟肆佰貳拾 |
| 18420 in Egyptian Numeral | 𓂭𓇃𓍥𓎇 |
| 18420 in Babylonian Numeral |   |
Roots and stuff for 18420
| Is 18420 a square number? | 18420 is NOT a square number |
| Is 18420 a cube number? | 18420 is NOT a cube number |
| Square root of the number 18420 | 135.72030061859 |
| Cube root of the number 18420 | 26.409684234087 |
Recreational math for 18420
| Number 18420 reversed | 02481 |
| Sum of the digits | 15 |
| No of digits | 5 |