一千个体积为1立方厘米的小正方体合在一起成为一个边长为10厘米的大正方体，大正方体表面涂油漆后再分开为原来的小正方体，这些小正方体至少有一面被油漆涂过的数目是多少个？

推荐阅读：
Buying a Home as a Blogger　 5 Social Media Blogs to Know in 2020　 How Tik Tok Works and How It Affects You as a Blogger　 7 Tips to Instantly Improve Your Social Media Marketing　 5 Qualities of a Blog That Makes Money　 How COVID-19 is Affecting Bloggers　 How to Hire the Right Copywriter for Your Blog　 5 Blogging Tips for Off-Road Enthusiasts　 The Future of Work: How to Successfully Work Remotely　 Javascript Function to Detect Capital String