3196
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 6048
- Proper Divisor Sum (Aliquot Sum)
- 2852
- 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
- 1472
- Möbius Function
- 0
- Radical
- 1598
- 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
- 74
- 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) is the solution to the postage stamp problem with n denominations and 5 stamps.at n=13A001215
- 4-dimensional analog of centered polygonal numbers. Also number of regions created by sides and diagonals of a convex n-gon in general position.at n=18A006522
- Coordination sequence T1 for Zeolite Code AFI.at n=39A008014
- Coordination sequence T2 for Zeolite Code LEV.at n=42A008128
- Aliquot sequence starting at 180.at n=30A008891
- A B_2 sequence: a(n) = least value such that the sequence increases and pairwise sums of distinct terms are all distinct.at n=43A010672
- Number of triples (i,j,k) with 1 <= i < j < k <= n and gcd(i,j,k) = 1.at n=28A015616
- Coordination sequence T1 for Zeolite Code OSI.at n=37A016430
- Inverse Euler transform of A000931.at n=41A018243
- a(n) = floor( Gamma(n + 5/6)/Gamma(5/6) ).at n=7A020080
- Pisot sequence T(4,6), a(n) = floor(a(n-1)^2/a(n-2)).at n=24A020747
- Pisot sequence T(6,9), a(n) = floor(a(n-1)^2/a(n-2)).at n=23A020751
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 28.at n=32A031526
- a(n) = C(n+2,3) + 2*C(n,2) + 2*(n-2).at n=23A034857
- Coordination sequence T5 for Zeolite Code STF.at n=38A038440
- Sums of 6 distinct powers of 3.at n=20A038468
- Numbers n such that string 9,6 occurs in the base 10 representation of n but not of n-1.at n=34A044428
- Numbers k such that string 9,6 occurs in the base 10 representation of k but not of k+1.at n=34A044809
- Numbers whose base-4 representation contains exactly two 0's and three 3's.at n=34A045074
- Starting from generation 4 add previous and next term yielding generation 5.at n=44A048451