Among the following, a perfect square is

Complete Solution:

A perfect square is a number whose square root is an integer. Let's check each option:

Option 1: 2345893

√2345893 ≈ 1531.1 (not an integer)

Option 2: 1486238

√1486238 ≈ 1219.1 (not an integer)

Option 3: 156282

√156282 ≈ 395.3 (not an integer)

Option 4: 10816

√10816 = 104 (an integer)

Among the given numbers, 10816 is the perfect square.

Final Answer:

The perfect square is: 10816.