121 Ternary to Binary
121 ternary = 10000 binary
121 written in binary is 1 0000, the number 16 in everyday decimal.
121 ternary = 10000 binary
How to convert 121 to binary
Step 1: Ternary to decimal
Multiply each digit by 3 to the power of its position (0 on the right), then add:
| Digit | Place value | Digit × place |
|---|---|---|
1 | 32 = 9 | 9 |
2 | 31 = 3 | 6 |
1 | 30 = 1 | 1 |
9 + 6 + 1 = 16
Step 2: Decimal to binary
Divide by 2 repeatedly and keep the remainders. Reading the remainders from the last one to the first gives the binary digits:
| Division | Quotient | Remainder (digit) |
|---|---|---|
| 16 ÷ 2 | 8 | 0 |
| 8 ÷ 2 | 4 | 0 |
| 4 ÷ 2 | 2 | 0 |
| 2 ÷ 2 | 1 | 0 |
| 1 ÷ 2 | 0 | 1 |
Result: 16 = 10000 in binary.
121 (ternary) in other systems
| Decimal | 16 |
| Roman numerals | XVI |
| Hexadecimal | 10 |
| Octal | 20 |
| Duodecimal | 14 |
| Base 36 | G |
| Vigesimal | G |
| Quaternary | 100 |
| Quinary | 31 |
| Senary | 24 |
Nearby ternary to binary conversions
| 102 to binary | 1011 |
| 110 to binary | 1100 |
| 111 to binary | 1101 |
| 112 to binary | 1110 |
| 120 to binary | 1111 |
| 122 to binary | 10001 |
| 200 to binary | 10010 |
| 201 to binary | 10011 |
| 202 to binary | 10100 |
| 210 to binary | 10101 |
About the number 16
- 16 is an even number.
- 16 is not a prime number.
- 16 is a power of two: 24.
- 16 is a perfect square: 4 × 4.
- Written in binary it needs 5 bits, so it fits in one byte.
Reverse conversion
Frequently asked questions
What is 121 in binary?
121 in ternary is 10000 in binary (the number 16 in decimal).