Taiwan is 613 times larger than Manhattan (NYC borough).
Area: 35,980 km2 World Factbook
Population: 23,359,928 (July 2014) World Factbook
Taiwan, officially the Republic of China, is a state in East Asia. The Republic of China, originally based in mainland China, now governs the island of Taiwan, which makes up over 99% of its territory, as well as Penghu, Kinmen, Matsu, and other minor islands. Wikipedia
Area: 59 km2 calculated
Manhattan is the most densely populated of the five boroughs of New York City. The borough is coterminous with New York County, an original county of the U.S. state of New York. Wikipedia