Sean XiaoQing Tang, URCS Undergrad Student

Email: xiaoqing.tang[at]rochester.edu

Cheers! The current biggest perfect digital invariant (PDI) is found! For this number n, if we write it in decimals, i.e. n=(d_k...d_0), then n=sigma(i=0~k,d_i^s) for s=86 (March 25):

69667952784088639691808710701185383514870536392736044560367260582163761703295320272

(March 26) For s=96, n=:

323873609457525359479354365757702293121848467128950473964646292221248526230623051921364831278

Last change: Mar 25, 2009

Back to URCS Undergrad directory

Back to URCS Home Page