6224
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 10
- Divisor Sum
- 12090
- Proper Divisor Sum (Aliquot Sum)
- 5866
- 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
- 3104
- Möbius Function
- 0
- Radical
- 778
- Omega Function (Ω)
- 5
- 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
- 124
- 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 degree-n permutations of order dividing 4.at n=8A001472
- a(n) = a(n-1) + a(n - 1 - number of even terms so far).at n=38A006336
- Table T(n,k) giving number of permutations of [1..n] with order dividing k, read by antidiagonals.at n=58A008307
- Discriminants of totally real quartic fields.at n=25A023680
- Numbers having four 4's in base 5.at n=31A043368
- Starting from generation 5 add previous and next term yielding generation 6.at n=43A048452
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 89 ).at n=19A063362
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 97 ).at n=16A063370
- Numbers n whose sum of divisors and number of divisors are both triangular numbers.at n=24A070996
- Number of perfect rulers with n segments (n>=0).at n=17A103301
- Integer part of Sum_{k>=0} Sum_{j=0..k} n^j*A107045(k,j)/A107046(k,j).at n=18A107055
- Binomial transform of tribonacci sequence A000073.at n=10A115390
- 3*Volume of the root-n Waterman polyhedron as defined in A119870.at n=32A119873
- Number of polygons on n vertices with four faces such that the source of the polygon lies on exactly two faces.at n=5A128656
- Concatenation of first two digits and last two digits of n-th even superperfect number A061652(n).at n=39A138869
- Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k blocks of length 2 (0 <= k <= floor(n/2)). A block of a permutation is a maximal sequence of consecutive integers which appear in consecutive positions. For example, the permutation 5412367 has 4 blocks: 5, 4, 123, and 67; one of them is of length 2.at n=28A184183
- Number of rhombuses on a (n+1)X9 grid.at n=22A190097
- Number of n X 3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,4,1,0 for x=0,1,2,3,4.at n=8A196984
- T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 2,3,4,1,0 for x=0,1,2,3,4.at n=57A196989
- Principal diagonal of the convolution array A213783.at n=31A213759