3652
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 7056
- Proper Divisor Sum (Aliquot Sum)
- 3404
- 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
- 1640
- Möbius Function
- 0
- Radical
- 1826
- 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
- 131
- 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 fixed hexagonal polyominoes with n cells.at n=6A001207
- Number of n-bead bracelets (turnover necklaces) of two colors with 6 red beads and n-6 black beads.at n=19A005513
- Sum of Gaussian binomial coefficients [ n,k ] for q=7.at n=4A006121
- Coordination sequence T1 for Zeolite Code ANA.at n=39A008031
- Coordination sequence T5 for Zeolite Code DDR.at n=38A008075
- Coordination sequence T2 for Zeolite Code LAU.at n=43A008125
- Coordination sequence T1 for Banalsite.at n=36A008249
- Coordination sequence T2 for Banalsite.at n=36A008250
- Coordination sequence T3 for Zeolite Code iRON.at n=42A009883
- Coordination sequence for FeS2-Pyrite, S position.at n=28A009956
- a(n) = prime(n)*(prime(n+1)-1)/2.at n=22A014303
- a(n) = 1*t(n) + 2*t(n-1) + ... + k*t(n+1-k), where k=floor((n+1)/2) and t = (F(2), F(3), F(4), ...), F(n) = Fibonacci(n).at n=13A023864
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (natural numbers), t = (Fibonacci numbers).at n=13A024857
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (natural numbers), t = (F(2), F(3), F(4), ... ).at n=12A024861
- Number of days in n years (n=4 is the first leap year).at n=9A033171
- Number of days in n years (n=3 is the first leap year).at n=9A033172
- Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n-1)/3.at n=14A048008
- Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n-2)/3.at n=14A048019
- Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n-3)/3.at n=14A048030
- Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= sqrt(n).at n=14A048096