1020

1020 is a natural number that lies between 1019 and 1021. It is even and composite, with prime factorization 2^2 × 3 × 5 × 17. The number has 24 divisors. It is a Harshad number in base 10, since the sum of its digits is 1+0+2+0 = 3 and 1020 ÷ 3 = 340.

In numeral systems, 1020 has representations in several bases: 1111111100 in binary, 1774 in octal, and 3FC in hexadecimal. In Roman numerals, 1020 is written as MXX (1000 plus 20).

As a calendar year, 1020 CE falls in the early 11th century. In Europe, the period was characterized by feudal structures and ecclesiastical influence, while the Byzantine Empire was governed by Basil II during this era (reign 976–1025). The year is referenced in regional chronicles and historical records from multiple regions, reflecting the diverse political and cultural landscapes of the time.

Beyond mathematics and history, 1020 may appear in modern contexts as part of identifiers, catalog numbers, or model designations. In such uses, its meaning depends entirely on the specific system or domain in which it is employed.