Names of 21139
| Nominal | 21139 |
| Cardinal | twenty-one thousand one hundred thirty-nine |
| Ordinal | 21,139th |
| This number as US currency | twenty-one thousand one hundred thirty-nine dollars |
| Is 21139 an odd number? | 21139 is an odd number |
| Is 21139 an even number? | 21139 is NOT an even number |
| Is 21139 a palindrome? | 21139 is NOT a palindrome number |
| Is 21139 a triangle number? | 21139 is NOT a triangle number |
21139 in other Bases
| Base 2 (Binary) | 1010010100100112 |
| Base 3 (Ternary) | 10012222213 |
| Base 4 (Quaternary) | 110221034 |
| Base 5 (Quinary) | 11340245 |
| Base 6 (Senary) | 2415116 |
| Base 8 (Octal) | 512238 |
| Base 12 (Duodecimal) | 1029712 |
| Base 16 (Hexadecimal) | 529316 |
| Base 20 (Vigesimal) | 2CGJ20 |
Primes and Factors tests for 21139
| Is 21139 a Prime Number? | 21139 is a prime |
| Is 21139 a perfect number? | 21139 is NOT a perfect number |
| Is 21139 a Mersenne Prime? | 21139 is NOT a Mersenne prime |
| Is 21139 a Fermat Prime? | 21139 is NOT a Fermat prime |
| Is 21139 a Fibonacci Prime? | 21139 is NOT a Fibonacci prime |
| Is 21139 a Partition Prime? | 21139 is NOT a Partition prime |
| Is 21139 a Pell Prime? | 21139 is NOT a Pell prime |
| Prime Factors | Prime factors of 21139 |
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21139 in other Numerals
| 21139 in Roman Numeral | XXMCXXXIX |
| 21139 in Chinese Numeral | 貳萬壹仟壹佰叄拾玖 |
| 21139 in Egyptian Numeral | 𓂮𓆼𓍢𓎈𓐂 |
| 21139 in Babylonian Numeral |    |
Roots and stuff for 21139
| Is 21139 a square number? | 21139 is NOT a square number |
| Is 21139 a cube number? | 21139 is NOT a cube number |
| Square root of the number 21139 | 145.39257202485 |
| Cube root of the number 21139 | 27.649979453391 |
Recreational math for 21139
| Number 21139 reversed | 93112 |
| Sum of the digits | 16 |
| No of digits | 5 |