Biography
Dattathreya Ramachandra Kaprekar, Indian mathematician (Dahanu, Maharashtra 17 January 1905 – Devlali 05 July 1986)
Discovered Kaprekar constant or 6174 (1949)
Described Kaprekar number
Defined self numbers or Devlali numbers (1963)
Described Harshad numbers
Named Demlo numbers
EPONYMY
Kaprekar operation
Kaprekar cycle or procedure
Kaprekar algorithm
Kaprekar problem