11676
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 31360
- Proper Divisor Sum (Aliquot Sum)
- 19684
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3312
- Möbius Function
- 0
- Radical
- 5838
- Omega Function (Ω)
- 5
- Little Omega Function (ω)
- 4
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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 218
- 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
- Maximal length of rook tour on an n X n board.at n=25A006071
- a(n) = floor( n*(n-1)*(n-2)*(n-3)/26 ).at n=25A011936
- Expansion of tan(tan(x)*sinh(x))/2.at n=4A024279
- dot_product(n,n-1,...2,1)*(7,8,...,n,1,2,3,4,5,6).at n=29A026066
- Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 18.at n=11A031696
- Denominator of continued fraction given by C(n) = [1; 3, 5, 7, ..., (2*n-1)].at n=5A036244
- a(n) = 3*(n - 2)*(5*n -11).at n=28A060785
- Table T(n,k) by antidiagonals: T(n,k) = number of partitions of n balls of k colors.at n=51A075196
- Sum of terms of n-th group in A075383.at n=20A075386
- Number of free hexagonal polygons of symmetry class C_(3h) and area n.at n=24A121212
- Numbers k such that k^6 + 82991 is prime.at n=2A126893
- Elias omega coded prime numbers represented in decimal.at n=26A147764
- G.f.: -2*(-2 - 11*x - 4*x^2 + x^3)/(x - 1)^4.at n=12A152110
- Maximal length of rook tour on an n X n+2 board.at n=24A152133
- a(n) = 686*n + 14.at n=16A157366
- 324n^2 + 2n.at n=5A158271
- a(n) = 144*n^2 + 12.at n=9A158546
- Number of (w,x,y,z) with all terms in {1,...,n} and w > (geometric mean of x,y,z).at n=12A212144
- Triangular array read by rows: T(n,k) is the number of simple labeled graphs with n vertices and k components such that each vertex has even degree; n >= 1, 1 <= k <= n.at n=50A228550
- Values x of successive minima records of k = log(x)/log(d) where d runs through the positive values of x^3-round(sqrt(x^3))^2.at n=12A232536