254 (number)
254 (two hundred [and] fifty-four) is the natural number following 253 and preceding 255.
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| Cardinal | two hundred fifty-four | |||
| Ordinal | 254th (two hundred fifty-fourth) | |||
| Factorization | 2 × 127 | |||
| Divisors | 1, 2, 127, 254 | |||
| Greek numeral | ΣΝΔ´ | |||
| Roman numeral | CCLIV | |||
| Binary | 111111102 | |||
| Ternary | 1001023 | |||
| Quaternary | 33324 | |||
| Quinary | 20045 | |||
| Senary | 11026 | |||
| Octal | 3768 | |||
| Duodecimal | 19212 | |||
| Hexadecimal | FE16 | |||
| Vigesimal | CE20 | |||
| Base 36 | 7236 | |||
In mathematics
- It is an even number.
- Is a composite number with four divisors: 1, 2, 127 and 254. Since the sum of its divisors (excluding the same number) is 130 < 254, is a deficient number.
- It is a semiprime number.
- It is a square-free integer.
- It is a number nontotient.
- It is the maximum number of regions in which a plane can be divided by 22 lines.
- It is a congruent number.
In other fields
- 254 nm is one of the wavelengths emitted by a mercury-vapor lamp
gollark: If you know of a serialization library which *does* and which emits compact output, please tell me.
gollark: I'm just using a boring old JSON library, okay? I don't see why I'd want to serialize that to tapes.
gollark: It has four functions: `write(tape_drive, data, ignore_out_of_space)`, `write_string(tape_drive, string, ignore_out_of_space)`, `read(tape_drive)`, `read_string(tape_drive)`.
gollark: https://pastebin.com/eR4RfSiTIntroducing my simple library for using tapes to store data.
gollark: I decided to just use that JSON API.
References
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