Names of 640140
| Nominal | 640140 |
| Cardinal | six hundred forty thousand one hundred forty |
| Ordinal | 640,140th |
| This number as US currency | six hundred forty thousand one hundred forty dollars |
| Is 640140 an odd number? | 640140 is NOT an odd number |
| Is 640140 an even number? | 640140 is an even number |
| Is 640140 a palindrome? | 640140 is NOT a palindrome number |
| Is 640140 a triangle number? | 640140 is NOT a triangle number |
640140 in other Bases
| Base 2 (Binary) | 100111000100100011002 |
| Base 3 (Ternary) | 10121120022203 |
| Base 4 (Quaternary) | 21301020304 |
| Base 5 (Quinary) | 1304410305 |
| Base 6 (Senary) | 214153406 |
| Base 8 (Octal) | 23422148 |
| Base 12 (Duodecimal) | 26A55012 |
| Base 16 (Hexadecimal) | 9C48C16 |
| Base 20 (Vigesimal) | 4007020 |
Primes and Factors tests for 640140
| Is 640140 a Prime Number? | 640140 is NOT a prime |
| Is 640140 a perfect number? | 640140 is NOT a perfect number |
| Is 640140 a Mersenne Prime? | 640140 is NOT a Mersenne prime |
| Is 640140 a Fermat Prime? | 640140 is NOT a Fermat prime |
| Is 640140 a Fibonacci Prime? | 640140 is NOT a Fibonacci prime |
| Is 640140 a Partition Prime? | 640140 is NOT a Partition prime |
| Is 640140 a Pell Prime? | 640140 is NOT a Pell prime |
| Prime Factors | Prime factors of 640140 |
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640140 in other Numerals
| 640140 in Roman Numeral | DCXLCXL |
| 640140 in Chinese Numeral | 陸拾萬肆萬壹佰肆拾 |
| 640140 in Egyptian Numeral | 𓆐𓆐𓆐𓆐𓆐𓆐𓂰𓍢𓎉 |
| 640140 in Babylonian Numeral |    |
Roots and stuff for 640140
| Is 640140 a square number? | 640140 is NOT a square number |
| Is 640140 a cube number? | 640140 is NOT a cube number |
| Square root of the number 640140 | 800.08749521537 |
| Cube root of the number 640140 | 86.183670910986 |
Recreational math for 640140
| Number 640140 reversed | 041046 |
| Sum of the digits | 15 |
| No of digits | 6 |