1484
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 3024
- Proper Divisor Sum (Aliquot Sum)
- 1540
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 624
- Möbius Function
- 0
- Radical
- 742
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 47
- 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
- a(n) = n*(n+3)/2.at n=53A000096
- A self-generating sequence: a(1)=1, a(2)=2, a(n+1) chosen so that a(n+1)-a(n-1) is the first number not obtainable as a(j)-a(i) for 1<=i<j<=n.at n=43A001149
- Number of (undirected) Hamiltonian paths in the n-ladder graph K_2 X P_n.at n=38A003682
- Number of restricted 3 X 3 matrices with row and column sums n.at n=26A005045
- Number of ways in which n identical balls can be distributed among 4 boxes in a row such that each pair of adjacent boxes contains at least 4 balls.at n=13A005337
- Number of chiral planted trees with n nodes.at n=10A005628
- Coordination sequence T3 for Zeolite Code MEP.at n=23A008159
- Coordination sequence T4 for Zeolite Code MOR.at n=25A008185
- Coordination sequence for 4-dimensional face-centered cubic orthogonal lattice.at n=6A008529
- Expansion of (1+x)/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)).at n=43A008762
- If a, b in sequence, so is ab+4.at n=29A009303
- a(n) is the concatenation of n and 6n.at n=13A009440
- a(n) = n*(2*n-3).at n=28A014107
- Partial sums of A003136.at n=34A014146
- a(n) = n^2 + n + 2.at n=38A014206
- Number of 5's in all the partitions of n into distinct parts.at n=50A015740
- Number of partitions of n into distinct parts, none being 5.at n=46A015750
- Seven iterations of Reverse and Add are needed to reach a palindrome.at n=19A015986
- Expansion of 1/((1-5*x)*(1-9*x)).at n=3A016163
- Inverse Euler transform of A000931.at n=38A018243