Names of 138640
| Nominal | 138640 |
| Cardinal | one hundred thirty-eight thousand six hundred forty |
| Ordinal | 138,640th |
| This number as US currency | one hundred thirty-eight thousand six hundred forty dollars |
| Is 138640 an odd number? | 138640 is NOT an odd number |
| Is 138640 an even number? | 138640 is an even number |
| Is 138640 a palindrome? | 138640 is NOT a palindrome number |
| Is 138640 a triangle number? | 138640 is NOT a triangle number |
138640 in other Bases
| Base 2 (Binary) | 1000011101100100002 |
| Base 3 (Ternary) | 210010112113 |
| Base 4 (Quaternary) | 2013121004 |
| Base 5 (Quinary) | 134140305 |
| Base 6 (Senary) | 25455046 |
| Base 8 (Octal) | 4166208 |
| Base 12 (Duodecimal) | 6829412 |
| Base 16 (Hexadecimal) | 21D9016 |
| Base 20 (Vigesimal) | H6C020 |
Primes and Factors tests for 138640
| Is 138640 a Prime Number? | 138640 is NOT a prime |
| Is 138640 a perfect number? | 138640 is NOT a perfect number |
| Is 138640 a Mersenne Prime? | 138640 is NOT a Mersenne prime |
| Is 138640 a Fermat Prime? | 138640 is NOT a Fermat prime |
| Is 138640 a Fibonacci Prime? | 138640 is NOT a Fibonacci prime |
| Is 138640 a Partition Prime? | 138640 is NOT a Partition prime |
| Is 138640 a Pell Prime? | 138640 is NOT a Pell prime |
| Prime Factors | Prime factors of 138640 |
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138640 in other Numerals
| 138640 in Roman Numeral | CXXXVMMMDCXL |
| 138640 in Chinese Numeral | 壹拾萬叄萬捌仟陸佰肆拾 |
| 138640 in Egyptian Numeral | 𓆐𓂯𓇃𓍧𓎉 |
| 138640 in Babylonian Numeral |    |
Roots and stuff for 138640
| Is 138640 a square number? | 138640 is NOT a square number |
| Is 138640 a cube number? | 138640 is NOT a cube number |
| Square root of the number 138640 | 372.34392703521 |
| Cube root of the number 138640 | 51.756255710265 |
Recreational math for 138640
| Number 138640 reversed | 046831 |
| Sum of the digits | 22 |
| No of digits | 6 |