2328
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 5880
- Proper Divisor Sum (Aliquot Sum)
- 3552
- 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
- 768
- Möbius Function
- 0
- Radical
- 582
- Omega Function (Ω)
- 5
- 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
- no
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 120
- 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
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- yes
- Odd
- no
Appears in sequences
- Number of groups of order 2^n.at n=7A000679
- Number of self-avoiding n-step walks on honeycomb lattice.at n=11A001668
- Coefficients in expansion of permanent of infinite tridiagonal matrix shown below.at n=53A003113
- Number of nonequivalent dissections of an n-gon into 3 polygons by nonintersecting diagonals rooted at a cell up to rotation and reflection.at n=23A003452
- a(n) = a(n-1) + a(n-5); a(0) = ... = a(4) = 1.at n=30A003520
- a(n) = Fibonacci(n+1) - 2^floor(n/2).at n=17A005672
- a(n) = n*(4*n+1).at n=24A007742
- Numbers k such that k!! - 1 is prime.at n=15A007749
- Coordination sequence T9 for Zeolite Code EUO.at n=30A008104
- Coordination sequence T3 for Zeolite Code MEI.at n=35A008148
- Number of squarefree palindromes over {0, 1, 2} of length 2n+1.at n=26A012212
- Aliquot sequence starting at 552.at n=3A014360
- Coordination sequence T5 for Zeolite Code TER.at n=32A016437
- Expansion of 1/(1 -x^5 -x^6 -x^7 - ...).at n=35A017899
- Coordination sequence T2 for Zeolite Code IFR.at n=34A024983
- Expansion of (theta_3(z)*theta_3(17z)+theta_2(z)*theta_2(17z))^4.at n=32A028636
- Theta series of 6-dimensional perfect lattice P6.6 = A6,1.at n=22A029695
- Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 4.at n=35A031428
- Numbers k such that 147*2^k+1 is prime.at n=22A032423
- Concatenation of n and n + 5 or {n,n+5}.at n=22A032610