11776
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 20
- Divisor Sum
- 24552
- Proper Divisor Sum (Aliquot Sum)
- 12776
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5632
- Möbius Function
- 0
- Radical
- 46
- Omega Function (Ω)
- 10
- 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
- 24
- 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
- Bessel polynomial y_n(3).at n=4A001518
- Rook polynomials.at n=6A005778
- Number of points on surface of truncated tetrahedron: a(n) = 14*n^2 + 2 for n > 0, a(0)=1.at n=29A005905
- n*a(n) = 2*(2*n-1)*a(n-1) + 4*(n-1)*a(n-2) with a(0) = 1.at n=7A006139
- Number of ordered triples of integers from [ 1..n ] with no global factor.at n=42A015631
- Fibonacci sequence beginning 2, 30.at n=14A022377
- Number of independent subsets of Hamming graph H(n,3).at n=3A027681
- Numbers that are divisible by at least 10 primes (counted with multiplicity).at n=39A046313
- Numbers that are divisible by exactly 10 primes with multiplicity.at n=23A046314
- n is divisible by the 4th power of the number of unitary divisors of n (A034444).at n=42A048170
- Numbers n such that A048767(n) = n.at n=26A048768
- Expansion of (1 + x - 2*x^2)/(1 - 2*x)^2.at n=10A052951
- Penrice Christmas gift numbers, Card-matching numbers (Dinner-Diner matching numbers).at n=18A059057
- Card-matching numbers (Dinner-Diner matching numbers).at n=8A059069
- Numbers k such that phi(x) = k has exactly 12 solutions.at n=37A060675
- Triangle, read by rows, where the n-th row lists the (2n+1) coefficients of (1+2x+2x^2)^n.at n=56A084606
- Duplicate of A006139.at n=7A084607
- Inverse binomial transform of n^2*3^(n-1).at n=8A084857
- a(n) = 0^n/2 + 2^n*(n^2+n+2)/4.at n=9A087431
- Numbers k that divide Lucas(k) + 1.at n=29A094398