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