Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
Σ(mod(⌊|14572|/10^k⌋,10),k,0,⌊log10(|14572|)⌋)
Σ(mod(⌊|14572|/10^k⌋,10),k,0,⌊log10(|14572|)⌋)
Natural Language
Math Input
Extended Keyboard