Names of 3821
| Nominal | 3821 |
| Cardinal | three thousand eight hundred twenty-one |
| Ordinal | 3,821st |
| This number as US currency | three thousand eight hundred twenty-one dollars |
| Is 3821 an odd number? | 3821 is an odd number |
| Is 3821 an even number? | 3821 is NOT an even number |
| Is 3821 a palindrome? | 3821 is NOT a palindrome number |
| Is 3821 a triangle number? | 3821 is NOT a triangle number |
3821 in other Bases
| Base 2 (Binary) | 1110111011012 |
| Base 3 (Ternary) | 120201123 |
| Base 4 (Quaternary) | 3232314 |
| Base 5 (Quinary) | 1102415 |
| Base 6 (Senary) | 254056 |
| Base 8 (Octal) | 73558 |
| Base 12 (Duodecimal) | 226512 |
| Base 16 (Hexadecimal) | EED16 |
| Base 20 (Vigesimal) | 9B120 |
Primes and Factors tests for 3821
| Is 3821 a Prime Number? | 3821 is a prime |
| Is 3821 a perfect number? | 3821 is NOT a perfect number |
| Is 3821 a Mersenne Prime? | 3821 is NOT a Mersenne prime |
| Is 3821 a Fermat Prime? | 3821 is NOT a Fermat prime |
| Is 3821 a Fibonacci Prime? | 3821 is NOT a Fibonacci prime |
| Is 3821 a Partition Prime? | 3821 is NOT a Partition prime |
| Is 3821 a Pell Prime? | 3821 is NOT a Pell prime |
| Prime Factors | Prime factors of 3821 |
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3821 in other Numerals
| 3821 in Roman Numeral | MMMDCCCXXI |
| 3821 in Chinese Numeral | 叄仟捌佰貳拾壹 |
| 3821 in Egyptian Numeral | 𓆾𓍩𓎇𓏺 |
| 3821 in Babylonian Numeral |    |
Roots and stuff for 3821
| Is 3821 a square number? | 3821 is NOT a square number |
| Is 3821 a cube number? | 3821 is NOT a cube number |
| Square root of the number 3821 | 61.814237842102 |
| Cube root of the number 3821 | 15.633600598366 |
Recreational math for 3821
| Number 3821 reversed | 1283 |
| Sum of the digits | 14 |
| No of digits | 4 |