Names of 20161
| Nominal | 20161 |
| Cardinal | twenty thousand one hundred sixty-one |
| Ordinal | 20,161st |
| This number as US currency | twenty thousand one hundred sixty-one dollars |
| Is 20161 an odd number? | 20161 is an odd number |
| Is 20161 an even number? | 20161 is NOT an even number |
| Is 20161 a palindrome? | 20161 is NOT a palindrome number |
| Is 20161 a triangle number? | 20161 is NOT a triangle number |
20161 in other Bases
| Base 2 (Binary) | 1001110110000012 |
| Base 3 (Ternary) | 10001222013 |
| Base 4 (Quaternary) | 103230014 |
| Base 5 (Quinary) | 11211215 |
| Base 6 (Senary) | 2332016 |
| Base 8 (Octal) | 473018 |
| Base 12 (Duodecimal) | B80112 |
| Base 16 (Hexadecimal) | 4EC116 |
| Base 20 (Vigesimal) | 2A8120 |
Primes and Factors tests for 20161
| Is 20161 a Prime Number? | 20161 is a prime |
| Is 20161 a perfect number? | 20161 is NOT a perfect number |
| Is 20161 a Mersenne Prime? | 20161 is NOT a Mersenne prime |
| Is 20161 a Fermat Prime? | 20161 is NOT a Fermat prime |
| Is 20161 a Fibonacci Prime? | 20161 is NOT a Fibonacci prime |
| Is 20161 a Partition Prime? | 20161 is NOT a Partition prime |
| Is 20161 a Pell Prime? | 20161 is NOT a Pell prime |
| Prime Factors | Prime factors of 20161 |
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20161 in other Numerals
| 20161 in Roman Numeral | XXCLXI |
| 20161 in Chinese Numeral | 貳萬壹佰陸拾壹 |
| 20161 in Egyptian Numeral | 𓂮𓍢𓎋𓏺 |
| 20161 in Babylonian Numeral |    |
Roots and stuff for 20161
| Is 20161 a square number? | 20161 is NOT a square number |
| Is 20161 a cube number? | 20161 is NOT a cube number |
| Square root of the number 20161 | 141.98943622678 |
| Cube root of the number 20161 | 27.216818462465 |
Recreational math for 20161
| Number 20161 reversed | 16102 |
| Sum of the digits | 10 |
| No of digits | 5 |