Learn Perfect Number | Perfect Square | Perfect Cube Number
What do you mean by Perfect Number, Perfect Square, Perfect Cube Number?
Define Perfect Number
A perfect number is defined to be positive integer which is equal to the sum of its proper divisors..
For example: The smallest perfect number is 6 = 1 + 2 + 3.
Other perfect numbers are
28 = 1 + 2 + 4 + 7 + 14.
496 = 1 + 2 + 4 + 8 + 16 + 31 + 62 + 124 + 248
8128 = 1 + 2 + 4 + 8 + 16 + 32 + 64+ 127 + 254+ 508 + 1016 + 2032 + 4064.
Define Perfect Square Number or Square Number
Perfect square is an integer that is the square of an integer.
Example
12 = 1
22 = 4
32 = 9
42 = 16
52 = 25
62 = 36
72 = 49
82 = 64
92 = 81
102 = 100
Define Perfect Cube Number or Cube Number
Perfect Cube is an integer that is the sum of an 3 equal integers.
Example
13 = 1
23 = 8
33 = 27
43 = 64
53 = 125
63 = 216
73 = 343
83 = 512
93 = 729
103 = 1000
Related Number Types
- Integer
- Whole Number
- Digit
- Natural Number
- Odd Number
- Even Number
- Rational Number
- Irrational Number
- Transcendental Number
- Real Number
- Nominal Number
- Ordinal Number
- Arrangement Number
- Abundant Number
- Algebraic Number
- Automorphic Number
- Apocalypsec Number
- Amicable Number
- Aliquot Number
- Almost Perfect Number
- Alphametic Number
- Binary Number
- Catalan Number
- Circular Primes Number
- Complex Number
- Cyclic Number
- Cubic Number
- Congruent Number
- Cardinal Number
- Choice Number
- Composite Number
- Counting Number
- Fibonacci Number
- Fraction