well i would say 0 because lots of numbers have 0s on the end and also you would normally round things up to the nearest 10.
English - by number of countries, Chinese by number of speakers.
Mandarin has the most number of native speakers, but English is the most widely used langague in the world.
base-10 number system
Arabic
No, they are not.
Mandarin Chinese is the most spoken language in the world based on the number of native speakers.
The most 'popular' number in the world has not been recorded.
100 is a Hindu/Arabic number, that is the system which is used in most countries of the world.
Mandarin has the most number of native speakers and English is the most widely spoken.
Ranking of PhD number in the world
Sachin Tendulkar has played the most number of World Cup matches.
No 23 is not the best number in the world. In my eyes Lucky 7 is the best number in the world. 786 is the most best number in the world