3108
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 8512
- Proper Divisor Sum (Aliquot Sum)
- 5404
- 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
- 864
- Möbius Function
- 0
- Radical
- 1554
- Omega Function (Ω)
- 5
- Little Omega Function (ω)
- 4
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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 35
- 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 permutations of order n with the length of longest run equal to 3.at n=6A001251
- Expansion of 1/((1+x)*(1-x)^7).at n=9A001769
- Sum of fourth powers of first n odd numbers.at n=3A002309
- Theta series of 6-dimensional lattice A_6^(2) (other names for this lattice or the corresponding quadratic form are LAMBDA_{3,lambda}, P_6^(5), phi_6, F_14).at n=22A002706
- Numbers that are the sum of 7 positive 6th powers.at n=29A003363
- Alkane (or paraffin) numbers l(8,n).at n=12A005995
- Generalized Lucas numbers.at n=11A006492
- Coordination sequence T1 for Zeolite Code AFY.at n=46A008029
- Coordination sequence T2 for Zeolite Code AFY.at n=46A008030
- Number of equilateral triangles formed by triples of points taken from a hexagonal chunk of side n in the hexagonal lattice.at n=6A008893
- Coordination sequence T1 for Keatite.at n=31A009844
- Triangle read by rows: number of permutations of 1..n by length of longest run.at n=19A010026
- Spontaneous magnetization coefficients for square lattice spin 3/2 Ising model.at n=27A010105
- a(n) = floor(n*(n-1)*(n-2)/15).at n=37A011897
- Number of 3's in n-th term of A007651.at n=34A022468
- a(1) = 7; a(n+1) = a(n)-th nonprime, where nonprimes begin at 0.at n=25A025002
- a(1) = 7; a(n+1) = a(n)-th composite.at n=23A025011
- Number of perfect matchings in graph P_{2} X C_{6} X P_{n}.at n=2A028458
- Expansion of (theta_3(z)*theta_3(11z) + theta_2(z)*theta_2(11z))^3.at n=31A028611
- McKay-Thompson series of class 8E for the Monster group.at n=25A029841