11465
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 13764
- Proper Divisor Sum (Aliquot Sum)
- 2299
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 9168
- Möbius Function
- 1
- Radical
- 11465
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 68
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- 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
- no
- Odd
- yes
Appears in sequences
- Number of symmetry sites in all planted 1,3-trees with 2n nodes.at n=13A007135
- Numbers k such that the continued fraction for sqrt(k) has period 29.at n=32A020368
- Partial sums of (2n-1)!!.at n=7A076795
- Numbers k such that 10^k*(10^7*(-1+10^k)+6083806) + 10^k - 1 is prime.at n=9A107291
- a(n) = 441*n - 1.at n=25A158319
- a(n) = 26*n^2 - 1.at n=20A158551
- Number of -n..n arrays x(0..4) of 5 elements with zero sum and no element more than one greater than the previous.at n=15A199849
- Number of nX5 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 1 1 vertically.at n=6A207511
- Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 1 1 vertically.at n=4A207513
- Number of n X 3 0..2 arrays with horizontal differences mod 3 never 1, vertical differences mod 3 never -1, rows lexicographically nondecreasing, and columns lexicographically nonincreasing.at n=9A229423
- Number of numbers in row n of the array at A243851.at n=21A243853
- Numbers k such that the decimal expansions of both k and k^2 have 1 as smallest digit and 6 as largest digit.at n=17A257197
- Expansion of Product_{k>=1} 1/(1 - k^2*x^(k^2)).at n=27A282209
- G.f.: Product_{m>0} (1 + x^m + 2*x^(2*m) + 3*x^(3*m)).at n=30A290269
- Number of n X 4 0..1 arrays with every element unequal to 0, 1 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=11A299591
- Expansion of 1/(1 - x * theta_4(x)), where theta_4() is the Jacobi theta function.at n=22A307901
- Numbers k such that 449*2^k+1 is prime.at n=18A323194
- Triangle read by rows: T(n,k) is the number of unlabeled simple series-reduced 2-connected graphs with n nodes and k edges (n >= 4, ceiling(3*n/2) <= k <= n*(n-1)/2).at n=47A339069
- Squared length of diagonal of right trapezoid with three consecutive prime length sides.at n=27A360790
- Number of ways to tile a 3-row parallelogram of length n with triangular and rectangular tiles, each of size 3.at n=11A375821