203 (number)
Encyclopedia
203 is the natural number
following 202
and preceding 204
. It may be written as "two hundred three" or "two hundred and three".
, i.e. it is the number of partitions of a set
of size 6. 203 is also a happy number
.
Natural number
In mathematics, the natural numbers are the ordinary whole numbers used for counting and ordering . These purposes are related to the linguistic notions of cardinal and ordinal numbers, respectively...
following 202
202 (number)
202 is the natural number following 201 and preceding 203. It may be written as "two hundred two" or "two hundred and two".-In mathematics:...
and preceding 204
204 (number)
204 is the natural number following 203 and preceding 205. It may be written as "two hundred four" or "two hundred and four".-In mathematics:...
. It may be written as "two hundred three" or "two hundred and three".
In mathematics
203 is the 6th Bell numberBell number
In combinatorics, the nth Bell number, named after Eric Temple Bell, is the number of partitions of a set with n members, or equivalently, the number of equivalence relations on it...
, i.e. it is the number of partitions of a set
Partition of a set
In mathematics, a partition of a set X is a division of X into non-overlapping and non-empty "parts" or "blocks" or "cells" that cover all of X...
of size 6. 203 is also a happy number
Happy number
A happy number is defined by the following process. Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 , or it loops endlessly in a cycle which does not include 1...
.
In other fields
- 203 is the HTTP status code indicating partial information.
- 203 mm howitzer M1931 (B-4) was 203 mm (8 inch) Soviet heavy howitzer. Guns that were used with success against heavy German fortifications
- The 203mm/50 Modèle 1924 gun203mm/50 Modèle 1924 gunThe 203mm/50 Modèle 1924 was a medium naval gun of the French Navy.The type was used on the Duquesne and Suffren classes of heavy cruisers as main battery, mounted in four twin turrets weighing 180 tonnes each...
and 203mm/55 Modèle 1931 gun203mm/55 Modèle 1931 gunThe 203mm/55 Modèle 1931 gun was a medium naval gun of the French Navy.The type was used on the Algérie as main battery, mounted in four twin turrets....
were medium naval guns of the French Navy. - 203 Pompeja203 Pompeja203 Pompeja is a quite large main-belt asteroid.It was discovered by C. H. F. Peters on September 25, 1879, in Clinton, New York, and named after Pompeii, the Roman town destroyed in volcanic eruption in 79 AD.- References :...
is a quite large Main belt asteroidAsteroidAsteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...
. - The year 203203Year 203 was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Plautianus and Geta...
- 203 is an area code in Connecticut.