4356
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 27
- Divisor Sum
- 12103
- Proper Divisor Sum (Aliquot Sum)
- 7747
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1320
- Möbius Function
- 0
- Radical
- 66
- Omega Function (Ω)
- 6
- Little Omega Function (ω)
- 3
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- yes
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- yes
- Harshad Number
- yes
- Narcissistic Number
- no
- Collatz Steps
- 46
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- yes
- Achilles Number
- no
- Perfect Power
- yes
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- yes
- Odd
- no
Appears in sequences
- Sum of first n cubes; or n-th triangular number squared.at n=11A000537
- Squares that are not the sum of 2 nonzero squares.at n=39A000548
- a(n) = (prime(n) - 1)^2.at n=18A005722
- Number of equivalence classes of 4 X n binary matrices when one can permute rows, permute columns and complement columns.at n=13A006380
- Coordination sequence T2 for Zeolite Code JBW.at n=44A008122
- Theta series of direct sum of 6 copies of hexagonal lattice.at n=3A008657
- a(n) = a(n-1)+a(n-4).at n=25A014097
- Squares of palindromes.at n=15A014186
- Squares of elements to right of central element in Pascal triangle (by row) that are not 1.at n=28A014720
- Squares of elements to left of the central element in Pascal triangle (by row).at n=39A014721
- Squares of even elements in Pascal's triangle A007318.at n=34A014727
- Squares of even elements in Pascal's triangle A007318.at n=40A014727
- Squares of numbers in triangle of Eulerian numbers that are not 1.at n=4A014732
- Squares of even numbers in triangle of Eulerian numbers.at n=2A014733
- Squares of even triangular numbers.at n=4A014738
- Squares of numbers in array formed from even elements to the right of middle of rows of Pascal triangle.at n=16A014762
- Squares of distinct elements in Pascal triangle.at n=30A014764
- Squares of distinct elements in triangle of Eulerian numbers.at n=4A014765
- Squares of even hexagonal numbers.at n=2A014772
- Even squares: a(n) = (2*n)^2.at n=33A016742