2274
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 4560
- Proper Divisor Sum (Aliquot Sum)
- 2286
- 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
- 756
- Möbius Function
- -1
- Radical
- 2274
- Omega Function (Ω)
- 3
- 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
- 19
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- yes
- 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
- One half of number of non-self-conjugate partitions; also half of number of asymmetric Ferrers graphs with n nodes.at n=29A000701
- Absolute value of Glaisher's beta'(2n+1).at n=43A002291
- a(n)=least number m such that m-a(n-1)<>a(j)-a(k) for all j,k less than m; a(1)=1, a(2)=3.at n=45A004979
- Coordination sequence T1 for Zeolite Code APC.at n=33A008032
- Coordination sequence T5 for Zeolite Code MTW.at n=31A008200
- Coordination sequence T3 for Zeolite Code RTH.at n=33A009895
- Coordination sequence for MgNi2, Position Ni3.at n=12A009934
- a(n) = Sum_{i=1..floor((n+1)/4)} a(2*i-1) * a(n-2*i+1), with a(1)=a(2)=1.at n=21A024722
- Number of partitions of n into an even number of parts.at n=29A027187
- Sequence satisfies T^2(a)=a, where T is defined below.at n=46A027586
- 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 46.at n=12A031544
- Coordination sequence T2 for Zeolite Code SBT.at n=38A033613
- Number of partitions of n such that cn(0,5) = cn(1,5) = cn(3,5) <= cn(2,5) = cn(4,5).at n=66A036866
- Number of partitions of n such that cn(0,5) = cn(1,5) = cn(3,5) < cn(2,5) = cn(4,5).at n=66A036869
- Number of "connected animals" formed from n rhombic dodecahedra (or edge-connected cubes) in the face-centered cubic lattice, allowing translation and rotations of the lattice.at n=5A038172
- Numbers n such that string 4,2 occurs in the base 8 representation of n but not of n-1.at n=39A044221
- Numbers n such that string 0,6 occurs in the base 9 representation of n but not of n-1.at n=30A044257
- Numbers n such that string 7,4 occurs in the base 10 representation of n but not of n-1.at n=24A044406
- Numbers n such that string 4,2 occurs in the base 8 representation of n but not of n+1.at n=39A044602
- Numbers n such that string 0,6 occurs in the base 9 representation of n but not of n+1.at n=30A044638