6028
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 11592
- Proper Divisor Sum (Aliquot Sum)
- 5564
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 2720
- Möbius Function
- 0
- Radical
- 3014
- Omega Function (Ω)
- 4
- 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
- 23
- 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 strict 5th-order maximal independent sets in path graph.at n=49A007385
- Number of trees on n nodes with forbidden limbs.at n=16A014279
- a(n) = Sum_{k=0..floor(n/2)} T(n-k, k), T given by A026692.at n=17A026702
- Increasing gaps among twin primes: size.at n=33A036063
- Centered heptagonal numbers.at n=41A069099
- Indices of primes in sequence defined by A(0) = 81, A(n) = 10*A(n-1) + 61 for n > 0.at n=7A101076
- Partial sums of primes that are not Chen primes (starting with 1).at n=25A118483
- Egyptian fraction representation for the cube root of 83.at n=2A132557
- Numerator of a remarkable product.at n=10A133706
- Triangle read by rows, X^n * [1,0,0,0,...]; where X = a tridiagonal matrix with (1,1,1,...) in the main and subdiagonals and (1,2,3,...) in the subsubdiagonal.at n=56A140733
- a(n) = prime(prime(prime(n) - 1) - 1) - 1, where prime(n) = n-th prime.at n=33A141208
- Number of permutation symbols of type a(n) for hyperbolic archimedean tessellations of rank n.at n=14A142866
- Number of permutation symbols of type *a(n) for hyperbolic archimedean tessellations of rank n.at n=14A142870
- A bisection of A142866.at n=7A142872
- 28-gonal numbers: a(n) = n*(13*n - 12).at n=22A161935
- Main diagonal of array in A163280.at n=43A164000
- Number of (n+1) X 2 0..3 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.at n=2A206111
- Number of (n+1) X 4 0..3 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.at n=0A206113
- T(n,k) = number of (n+1) X (k+1) 0..3 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.at n=5A206118
- T(n,k) = number of (n+1) X (k+1) 0..3 arrays with every 2 X 3 or 3 X 2 subblock having exactly two counterclockwise and two clockwise edge increases.at n=3A206118