138431
Everything about the number 138431 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 138431
| Nominal | 138431 |
| Cardinal | one hundred thirty-eight thousand four hundred thirty-one |
| Ordinal | 138,431st |
| This number as US currency | one hundred thirty-eight thousand four hundred thirty-one dollars |
Properties (and some facts) of 138431
| Is 138431 an odd number? | 138431 is an odd number |
| Is 138431 an even number? | 138431 is not an even number |
| Is 138431 a palindrome? | 138431 is not a palindrome |
| Is 138431 a triangle number? | 138431 is not a triangle number |
138431 in other bases
| Base 2 (Binary) | 100001110010111111 |
| Base 3 (Ternary) | 21000220002 |
| Base 4 (Quaternary) | 201302333 |
| Base 5 (Quinary) | 13412211 |
| Base 6 (Senary) | 2544515 |
| Base 8 (Octal) | 416277 |
| Base 12 (Duodecimal) | 6813B |
| Base 16 (Hexadecimal) | 21CBF |
| Base 20 (Vigesimal) | H61B |
Primes and factors tests for 138431
| Is 138431 a prime number? | 138431 is not a prime number |
| Is 138431 a perfect number? | 138431 is not a perfect number |
| Is 138431 a Mersenne prime? | 138431 is not a Mersenne prime |
| Is 138431 a Fermat prime? | 138431 is not a Fermat prime |
| Is 138431 a Fibonacci prime? | 138431 is not a Fibonacci prime |
| Is 138431 a partition prime? | 138431 is not a partition prime |
| Is 138431 a Pell prime? | 138431 is not a Pell prime |
| Prime Factors | Prime factors of 138431 |
138431 in other numeral systems
| 138431 in Roman numerals | CXXXVMMMCDXXXI |
| 138431 in Chinese numerals | 壹拾萬叄萬捌仟肆佰叄拾壹 |
| 138431 in Babylonian numerals |    |
| 138431 in Egyptian numerals | 𓆐𓂯𓇃𓍥𓎈𓏺 |
Roots and squares for 138431
| Is 138431 a square number? | 138431 is not a square number |
| Is 138431 a cube number? | 138431 is not a cube number |
| Square root of 138431 | 372.06316668007 |
| Cube root of 138431 | 51.730235087124 |
Recreational math for 138431
| Number 138431 reversed | 134831 |
| Sum of the digits | 20 |
| Number of digits | 6 |