138409
Everything about the number 138409 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 138409
| Nominal | 138409 |
| Cardinal | one hundred thirty-eight thousand four hundred nine |
| Ordinal | 138,409th |
| This number as US currency | one hundred thirty-eight thousand four hundred nine dollars |
Properties (and some facts) of 138409
| Is 138409 an odd number? | 138409 is an odd number |
| Is 138409 an even number? | 138409 is not an even number |
| Is 138409 a palindrome? | 138409 is not a palindrome |
| Is 138409 a triangle number? | 138409 is not a triangle number |
138409 in other bases
| Base 2 (Binary) | 100001110010101001 |
| Base 3 (Ternary) | 21000212021 |
| Base 4 (Quaternary) | 201302221 |
| Base 5 (Quinary) | 13412114 |
| Base 6 (Senary) | 2544441 |
| Base 8 (Octal) | 416251 |
| Base 12 (Duodecimal) | 68121 |
| Base 16 (Hexadecimal) | 21CA9 |
| Base 20 (Vigesimal) | H609 |
Primes and factors tests for 138409
| Is 138409 a prime number? | 138409 is not a prime number |
| Is 138409 a perfect number? | 138409 is not a perfect number |
| Is 138409 a Mersenne prime? | 138409 is not a Mersenne prime |
| Is 138409 a Fermat prime? | 138409 is not a Fermat prime |
| Is 138409 a Fibonacci prime? | 138409 is not a Fibonacci prime |
| Is 138409 a partition prime? | 138409 is not a partition prime |
| Is 138409 a Pell prime? | 138409 is not a Pell prime |
| Prime Factors | Prime factors of 138409 |
138409 in other numeral systems
| 138409 in Roman numerals | CXXXVMMMCDIX |
| 138409 in Chinese numerals | 壹拾萬叄萬捌仟肆佰玖 |
| 138409 in Babylonian numerals |    |
| 138409 in Egyptian numerals | 𓆐𓂯𓇃𓍥𓐂 |
Roots and squares for 138409
| Is 138409 a square number? | 138409 is not a square number |
| Is 138409 a cube number? | 138409 is not a cube number |
| Square root of 138409 | 372.03360063306 |
| Cube root of 138409 | 51.727494551006 |
Recreational math for 138409
| Number 138409 reversed | 904831 |
| Sum of the digits | 25 |
| Number of digits | 6 |