11394
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 25440
- Proper Divisor Sum (Aliquot Sum)
- 14046
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3780
- Möbius Function
- 0
- Radical
- 1266
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 68
- 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
- a(n) = floor( n*(n-1)*(n-2)/23 ).at n=65A011905
- Number of matchings in Moebius ladder M_n.at n=6A020877
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 91 ).at n=36A063364
- Number of nonisomorphic groups with orders indexed by least prime signatures.at n=38A098887
- Sum of the quadratic nonresidues of prime(n).at n=46A125615
- Self-convolution with "addition" played by bitwise XOR.at n=10A199770
- Number of length 3+2 0..n arrays with every three consecutive terms having the sum of some two elements equal to twice the third.at n=40A248436
- a(n) is the sum of quadratic nonresidues of A002145(n) (the n-th prime == 3 mod 4).at n=24A282036
- Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic nonresidues mod p .at n=12A282726
- Number of partitions of 2n into distinct parts whose bitwise XOR equals 0.at n=47A307506
- Number of 3 X 3 matrices with unit determinant and positive integer entries whose sum is n.at n=25A361082
- Expansion of ( 1 + 4 * Sum_{k>=0} x^(2^k)/(1 - x^(2^k))^2 )^(1/2).at n=13A382335
- Number of (undirected) Hamiltonian paths on the first n cells of the 7 X ceiling(n/7) knight graph.at n=29A389757