138121
Everything about the number 138121 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 138121
| Nominal | 138121 |
| Cardinal | one hundred thirty-eight thousand one hundred twenty-one |
| Ordinal | 138,121st |
| This number as US currency | one hundred thirty-eight thousand one hundred twenty-one dollars |
Properties (and some facts) of 138121
| Is 138121 an odd number? | 138121 is an odd number |
| Is 138121 an even number? | 138121 is not an even number |
| Is 138121 a palindrome? | 138121 is not a palindrome |
| Is 138121 a triangle number? | 138121 is not a triangle number |
138121 in other bases
| Base 2 (Binary) | 100001101110001001 |
| Base 3 (Ternary) | 21000110121 |
| Base 4 (Quaternary) | 201232021 |
| Base 5 (Quinary) | 13404441 |
| Base 6 (Senary) | 2543241 |
| Base 8 (Octal) | 415611 |
| Base 12 (Duodecimal) | 67B21 |
| Base 16 (Hexadecimal) | 21B89 |
| Base 20 (Vigesimal) | H561 |
Primes and factors tests for 138121
| Is 138121 a prime number? | 138121 is not a prime number |
| Is 138121 a perfect number? | 138121 is not a perfect number |
| Is 138121 a Mersenne prime? | 138121 is not a Mersenne prime |
| Is 138121 a Fermat prime? | 138121 is not a Fermat prime |
| Is 138121 a Fibonacci prime? | 138121 is not a Fibonacci prime |
| Is 138121 a partition prime? | 138121 is not a partition prime |
| Is 138121 a Pell prime? | 138121 is not a Pell prime |
| Prime Factors | Prime factors of 138121 |
138121 in other numeral systems
| 138121 in Roman numerals | CXXXVMMMCXXI |
| 138121 in Chinese numerals | 壹拾萬叄萬捌仟壹佰貳拾壹 |
| 138121 in Babylonian numerals |    |
| 138121 in Egyptian numerals | 𓆐𓂯𓇃𓍢𓎇𓏺 |
Roots and squares for 138121
| Is 138121 a square number? | 138121 is not a square number |
| Is 138121 a cube number? | 138121 is not a cube number |
| Square root of 138121 | 371.64633726165 |
| Cube root of 138121 | 51.691591627403 |
Recreational math for 138121
| Number 138121 reversed | 121831 |
| Sum of the digits | 16 |
| Number of digits | 6 |