28. The sum of its factors (smaller than 28) is 1 + 2 + 4 + 7 + 14 = 28.
25 is a perfect square occurring between 20 and 30.
The two perfect numbers between 1 and 30 are: 6, 28
25
29
No, only perfect squares like 25 and 36, which are around 30, have a square root that is a rational number.
perfect square numbers are 16 and 25
25 is a perfect square occurring between 20 and 30.
28 is a perfect number.
The two perfect numbers between 1 and 30 are: 6, 28
The only prime number between 25 and 30 is 29.
The number is 28.
The number that is exactly in between 25 and 35 is 30. It is the midpoint of the two numbers, calculated by averaging them: (25 + 35) / 2 = 30.
The only square number between 20 and 30 is 25.
1, 4, 9, 16, 25
1, 4, 9, 16, 25.
A number that has exactly an odd number of factors is a power of another number. A number between 10 and 30 that is a power is 16. It is 24 (as well as 42) and its factors are 1, 2, 4, 8, and 16.
36