5448
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 13680
- Proper Divisor Sum (Aliquot Sum)
- 8232
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1808
- Möbius Function
- 0
- Radical
- 1362
- 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
- no
- Narcissistic Number
- no
- Collatz Steps
- 67
- 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
- Number of certain self-avoiding walks with n steps on square lattice (see reference for precise definition).at n=16A006143
- Coordination sequence T2 for Zeolite Code NES.at n=47A008206
- Coordination sequence for CaF2(2), Ca position.at n=33A009926
- Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AST = AlPO4-16 [Al20P20O80].4R.16H2O starting with a T1 atom.at n=5A018982
- a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ... + a(n-3)*a(3) for n >= 4, with initial terms 3, 1, 1, 3.at n=9A025254
- Number of partitions of floor(n^2/2) with at most n parts and maximal height n.at n=10A029895
- Number of partitions of n with equal nonzero number of parts congruent to each of 1 and 4 (mod 5).at n=44A035568
- Number of partitions of n such that cn(1,5) < cn(0,5) = cn(2,5) <= cn(3,5) = cn(4,5).at n=75A036859
- Base-7 palindromes that start with 2.at n=29A043016
- High-temperature coefficients for internal energy for spin-1/2 Ising model on f.c.c. lattice.at n=4A047712
- Numbers k such that k^10 == 1 (mod 11^3).at n=41A056085
- Number of partitions of 2n^2 whose Ferrers-plot fits within a 2n X 2n box; number of ways to cut a 2n X 2n chessboard into two equal-area pieces along a non-descending line from lower left to upper right.at n=5A063074
- Non-balanced numbers in A015765.at n=23A074868
- Indices of the start of a string of 24 consecutive squares whose sum is a square.at n=16A094196
- Numbers k that divide the sum of the digits of 2^k * k!.at n=23A108861
- Expansion of x^4/((1-2*x)*(x^2-x+1)*(x-1)^2).at n=14A111926
- Triangle, read by rows, where T(n,k) is the coefficient of q^(n*k) in the q-binomial coefficient [2*n, n] for n >= k >= 0.at n=60A128545
- a(1) = 1, a(2) = 3, a(n+2) = 3*a(n+1) + (n + 1)*(n + 3)*a(n).at n=5A142988
- Array t(n, k) = (k*(n-1) +2-k)*t(n-1, k) + k*t(n-2, k), with t(1, k) = 1, t(2, k) = 2, read by antidiagonals.at n=22A144446
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, 1), (0, 0, -1), (0, 1, 1), (1, 0, 0)}.at n=7A150209