11466
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
- 3
Divisibility
- Divisor Count
- 36
- Divisor Sum
- 31122
- Proper Divisor Sum (Aliquot Sum)
- 19656
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3024
- Möbius Function
- 0
- Radical
- 546
- Omega Function (Ω)
- 6
- 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
- 29
- 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
- Theta series of D_13 lattice.at n=2A022044
- Theta series of D*_13 lattice.at n=16A022066
- a(n) = a(n-1) + a(n-2) + 1, with a(0) = 0 and a(1) = 10.at n=16A022315
- T(n,3), array T as in A050186; a count of aperiodic binary words.at n=39A050188
- (Terms in A028273)/2.at n=28A051298
- Number of proper T_1-hypergraphs with 3 labeled nodes and n hyperedges.at n=14A056078
- Numbers k such that k^128 + 1 is prime.at n=30A056994
- Numbers k that can be expressed as k = w + x = y*z with w*x = y^3 + z^3 where w, x, y, and z are all positive integers.at n=26A057372
- Number of walks of length n on square lattice, starting at origin, staying in first, second and third quadrants.at n=7A060898
- Numbers k such that binomial(prime(k), k) is divisible by k^2.at n=31A081384
- Pseudo-random numbers: Davenport's generator for 32-bit integers.at n=20A084277
- Least common multiple of numbers obtained by adding one to the odd divisors of n and subtracting 1 from the even divisors of n.at n=49A086536
- Numbers k such that 7^k + 4 is prime.at n=19A096305
- Multiples of 14 containing a 14 in their decimal representation.at n=37A121034
- a(1) = 1. a(n) = a(n-1) + a(m), where m is the largest term of the sequence {a(k)} which is less than n.at n=29A133488
- Composite numbers such that the square root of the sum of squares of their prime factors is a prime.at n=9A134607
- Numbers n such that primorial(n)/2 - 256 is prime.at n=16A139452
- Numbers k such that the set of prime factors of phi(k) is a proper subset of the set of prime factors of k and the set of prime factors of k is a proper subset of the set of prime factors of sigma(k).at n=33A141717
- Generalized Narayana numbers for root systems of type D_n. Triangle of h-vectors of type D associahedra.at n=50A145903
- Generalized Narayana numbers for root systems of type D_n. Triangle of h-vectors of type D associahedra.at n=49A145903