2652
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
- 24
- Divisor Sum
- 7056
- Proper Divisor Sum (Aliquot Sum)
- 4404
- 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
- 768
- Möbius Function
- 0
- Radical
- 1326
- 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
- yes
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 27
- 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
- Numbers k such that 5*2^k - 1 is prime.at n=27A001770
- Shuffling 2n cards.at n=51A002139
- a(n) = 2*n*(2*n-1).at n=26A002939
- a(n) = (2^n/n!) * Product_{k=0..n-1} (4*k + 1).at n=5A004981
- Super ballot numbers: 6(2n)!/(n!(n+2)!).at n=9A007054
- 11-gonal (or hendecagonal) pyramidal numbers: a(n) = n*(n+1)*(3*n-2)/2.at n=12A007586
- Coordination sequence T2 for Zeolite Code BIK.at n=32A008048
- a(n) = floor(C(n,6)/7).at n=18A011797
- a(n) = (1/12)*(n+5)*(n+1)*n^2.at n=12A014205
- Coordination sequence T2 for Zeolite Code OSI.at n=34A016431
- Number of lines through exactly 5 points of an n X n grid of points.at n=31A018812
- Number of lines through exactly 7 points of an n X n grid of points.at n=44A018814
- a(n) is the concatenation of n and 2n.at n=25A019550
- Perimeters of more than one primitive Pythagorean triangle.at n=1A024408
- Long leg of more than one primitive Pythagorean triangle.at n=19A024410
- a(n) = (-1 + prime(n+1)^2)/4.at n=25A024701
- a(n) = d(n)/2, where d = A026040.at n=22A026041
- Theta series of 6-dimensional 8-modular lattice of minimal norm 4.at n=22A029713
- Numbers k such that k^2 is palindromic in base 15.at n=33A030073
- Dimension of multiples of minimal representation of complex Lie algebra F4.at n=2A030647