2的100次方是几位数,怎么算

问题描述:

2的100次方是几位数,怎么算
怎么算

lg(2)=0.301029995663981195213738894724493026768189881462108541...

lg(2^100)= 100 log(2) =30.1029995663981195213738894724493026768189881462108541...

所以2^100是个31位数,开始有效数字是
10^0.10299956639811952137388947244930=1.2676506002282294014967032053760

其实:

2^100=1267650600228229401496703205376