3562
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
- 8
- Divisor Sum
- 5796
- Proper Divisor Sum (Aliquot Sum)
- 2234
- 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
- 1632
- Möbius Function
- -1
- Radical
- 3562
- 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
- 74
- 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
- Coordination sequence T2 for Zeolite Code EUO.at n=37A008097
- Coordination sequence T1 for Zeolite Code -PAR.at n=42A009855
- Number of ordered triples of integers from [ 2,n ] with no global factor.at n=28A015633
- Expansion of 1/(1-x^5-x^6-x^7-x^8-x^9-x^10-x^11).at n=39A017842
- Numbers k such that the continued fraction for sqrt(k) has period 15.at n=20A020354
- a(n) = Sum_{k>=1} floor(tau^(n-k)) where tau is A001622.at n=15A020956
- a(n) = (d(n)-r(n))/5, where d = A026043 and r is the periodic sequence with fundamental period (0,2,3,0,0).at n=34A026045
- a(n) = Sum_{j=0..n} Sum_{k=0..j} A026615(j, k).at n=10A026624
- Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 13.at n=3A031601
- Numbers k such that 253*2^k+1 is prime.at n=29A032503
- Numbers n such that string 6,2 occurs in the base 10 representation of n but not of n-1.at n=38A044394
- Numbers n such that string 6,2 occurs in the base 10 representation of n but not of n+1.at n=38A044775
- Composite numbers whose 3 prime factors are distinct in length.at n=24A046443
- Coordination sequence T1 for Zeolite Code SAS.at n=45A057312
- a(n) is the number of solutions to x+y+z = 0 mod 3, where 1 <= x < y < z <= n.at n=41A061866
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 95 ).at n=11A063368
- For even k >= 4, let f(k) = A066285(k/2) be the minimal difference between primes p and q whose sum is k. Such a k is in the sequence if f(k) > f(m) for all even m with 4 <= m < k.at n=20A065978
- Let R be the polynomial ring GF(2)[x]. Then a(n) = number of distinct products f*g with f,g in R and 1 <= deg(f),deg(g) <= n.at n=5A073961
- Antidiagonal sums of triangle A086614.at n=10A086615
- Main diagonal of A101866.at n=30A101867