215 (number)
Natural number
From Wikipedia, the free encyclopedia
215 (two hundred [and] fifteen) is the natural number following 214 and preceding 216.
| ||||
|---|---|---|---|---|
| Cardinal | two hundred fifteen | |||
| Ordinal | 215th (two hundred fifteenth) | |||
| Factorization | 5 × 43 | |||
| Divisors | 1, 5, 43, 215 | |||
| Greek numeral | ΣΙΕ´ | |||
| Roman numeral | CCXV, ccxv | |||
| Binary | 110101112 | |||
| Ternary | 212223 | |||
| Senary | 5556 | |||
| Octal | 3278 | |||
| Duodecimal | 15B12 | |||
| Hexadecimal | D716 | |||
In mathematics
- 215 is a composite number and a semiprime ().
- .
- 215 is the coefficient of the quadratic term in the Maclaurin series for .[1]
- 215 is a vertically symmetric number on a calculator display (sequence A053701 in the OEIS).
In other fields
- 215 is often used as slang for marijuana, from California Proposition 215, legalizing it for medical use.[citation needed]
- MAZ-215 — a fully low-floor articulated Belarusian bus made by Minsk Automobile Plant.
