138421
Everything about the number 138421 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 138421
| Nominal | 138421 |
| Cardinal | one hundred thirty-eight thousand four hundred twenty-one |
| Ordinal | 138,421st |
| This number as US currency | one hundred thirty-eight thousand four hundred twenty-one dollars |
Properties (and some facts) of 138421
| Is 138421 an odd number? | 138421 is an odd number |
| Is 138421 an even number? | 138421 is not an even number |
| Is 138421 a palindrome? | 138421 is not a palindrome |
| Is 138421 a triangle number? | 138421 is not a triangle number |
138421 in other bases
| Base 2 (Binary) | 100001110010110101 |
| Base 3 (Ternary) | 21000212201 |
| Base 4 (Quaternary) | 201302311 |
| Base 5 (Quinary) | 13412141 |
| Base 6 (Senary) | 2544501 |
| Base 8 (Octal) | 416265 |
| Base 12 (Duodecimal) | 68131 |
| Base 16 (Hexadecimal) | 21CB5 |
| Base 20 (Vigesimal) | H611 |
Primes and factors tests for 138421
| Is 138421 a prime number? | 138421 is not a prime number |
| Is 138421 a perfect number? | 138421 is not a perfect number |
| Is 138421 a Mersenne prime? | 138421 is not a Mersenne prime |
| Is 138421 a Fermat prime? | 138421 is not a Fermat prime |
| Is 138421 a Fibonacci prime? | 138421 is not a Fibonacci prime |
| Is 138421 a partition prime? | 138421 is not a partition prime |
| Is 138421 a Pell prime? | 138421 is not a Pell prime |
| Prime Factors | Prime factors of 138421 |
138421 in other numeral systems
| 138421 in Roman numerals | CXXXVMMMCDXXI |
| 138421 in Chinese numerals | 壹拾萬叄萬捌仟肆佰貳拾壹 |
| 138421 in Babylonian numerals |    |
| 138421 in Egyptian numerals | 𓆐𓂯𓇃𓍥𓎇𓏺 |
Roots and squares for 138421
| Is 138421 a square number? | 138421 is not a square number |
| Is 138421 a cube number? | 138421 is not a cube number |
| Square root of 138421 | 372.04972785906 |
| Cube root of 138421 | 51.728989424886 |
Recreational math for 138421
| Number 138421 reversed | 124831 |
| Sum of the digits | 19 |
| Number of digits | 6 |