2270

2270 is a natural number that follows 2269 and precedes 2271. In the decimal system it is an even composite number, with the prime factorisation 2 × 5 × 227. Its divisor list consists of 1, 2, 5, 10, 227, 454, 1135 and 2270, giving it eight positive divisors. In binary the number is represented as 100011011010, and in hexadecimal it is 8DA. The sum of its digits (2 + 2 + 7 + 0) equals 11, which is a prime number, and the digital root of 2270 is also 2. It is not a perfect square, cube, or triangular number, and it does not belong to any notable sequence such as the Fibonacci or Catalan series.

As a year, 2270 falls in the 23rd century of the Common Era. Because it lies more than two centuries in the future, no historical events have yet occurred, but it is occasionally referenced in speculative fiction and futurist scenarios. Some projections envision significant advances in space exploration, with proposed missions to the outer planets and the establishment of lunar or Martian habitats. Climate models for the early 23rd century often emphasize the need for sustained mitigation efforts to limit global temperature rise. Demographically, world population estimates for the year 2270 vary widely, ranging from 10 billion to over 15 billion, depending on assumptions about fertility, mortality, and technological impacts on life expectancy.

In astronomy, the designation “2270” may appear in catalogues such as minor planet numbers; for example, asteroid 2270 Hanan is a main‑belt object discovered in 1975. The number thus has relevance in mathematics, future studies, and scientific nomenclature, while remaining a relatively ordinary integer in everyday use.