17012
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 29778
- Proper Divisor Sum (Aliquot Sum)
- 12766
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 8504
- Möbius Function
- 0
- Radical
- 8506
- Omega Function (Ω)
- 3
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 79
- 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
- Coordination sequence for {A_5}* lattice.at n=9A008533
- Fibonacci sequence beginning 2, 16.at n=16A022370
- McKay-Thompson series of class 26A for Monster.at n=31A058596
- Numerator of A166100(A166101(n))/A166102(n).at n=29A166272
- Cyclops numbers whose squares are cyclops numbers.at n=27A239827
- Number of nX7 0..4 arrays with the absolute differences of each element with its with horizontal and antidiagonal neighbors unique.at n=0A265927
- T(n,k)=Number of nXk 0..4 arrays with the absolute differences of each element with its with horizontal and antidiagonal neighbors unique.at n=21A265928
- Number of 1 X n 0..4 arrays with the absolute differences of each element with its with horizontal and antidiagonal neighbors unique.at n=6A265929
- Number of nX7 0..4 arrays with the absolute differences of each element with its with horizontal and vertical neighbors unique.at n=0A265972
- T(n,k) = Number of n X k 0..4 arrays with the absolute differences of each element with its with horizontal and vertical neighbors unique.at n=21A265973
- T(n,k) = Number of n X k 0..4 arrays with the absolute differences of each element with its with horizontal and vertical neighbors unique.at n=27A265973
- Fixed points of A340069.at n=11A340100
- Number of (3+)-free binary strings of length n.at n=16A365253
- a(n) = A002070(n) + A036689(n).at n=31A366346
- Numbers of uniquely embeddable trees on n vertices.at n=22A378672