1421
Everything about the number 1421 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 1421
| Nominal | 1421 |
| Cardinal | one thousand four hundred twenty-one |
| Ordinal | 1,421st |
| This number as US currency | one thousand four hundred twenty-one dollars |
Properties (and some facts) of 1421
| Is 1421 an odd number? | 1421 is an odd number |
| Is 1421 an even number? | 1421 is not an even number |
| Is 1421 a palindrome? | 1421 is not a palindrome |
| Is 1421 a triangle number? | 1421 is not a triangle number |
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1421 in other bases
| Base 2 (Binary) | 10110001101 |
| Base 3 (Ternary) | 1221122 |
| Base 4 (Quaternary) | 112031 |
| Base 5 (Quinary) | 21141 |
| Base 6 (Senary) | 10325 |
| Base 8 (Octal) | 2615 |
| Base 12 (Duodecimal) | 9A5 |
| Base 16 (Hexadecimal) | 58D |
| Base 20 (Vigesimal) | 3B1 |
Primes and factors tests for 1421
| Is 1421 a prime number? | 1421 is not a prime number |
| Is 1421 a perfect number? | 1421 is not a perfect number |
| Is 1421 a Mersenne prime? | 1421 is not a Mersenne prime |
| Is 1421 a Fermat prime? | 1421 is not a Fermat prime |
| Is 1421 a Fibonacci prime? | 1421 is not a Fibonacci prime |
| Is 1421 a partition prime? | 1421 is not a partition prime |
| Is 1421 a Pell prime? | 1421 is not a Pell prime |
| Prime Factors | Prime factors of 1421 |
1421 in other numeral systems
| 1421 in Roman numerals | MCDXXI |
| 1421 in Chinese numerals | 壹仟肆佰貳拾壹 |
| 1421 in Babylonian numerals |   |
| 1421 in Egyptian numerals | 𓆼𓍥𓎇𓏺 |
Roots and squares for 1421
| Is 1421 a square number? | 1421 is not a square number |
| Is 1421 a cube number? | 1421 is not a cube number |
| Square root of 1421 | 37.696153649942 |
| Cube root of 1421 | 11.242546503232 |
Recreational math for 1421
| Number 1421 reversed | 1241 |
| Sum of the digits | 8 |
| Number of digits | 4 |
Arithmetic tables for 1421
Other pages about 1421
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