3566
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5352
- Proper Divisor Sum (Aliquot Sum)
- 1786
- 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
- 1782
- Möbius Function
- 1
- Radical
- 3566
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
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
- 48
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- Let A(n) = #{(i,j,k): i^2 + j^2 + k^2 <= n}, V(n) = (4/3)Pi*n^(3/2), P(n) = A(n) - V(n); sequence gives values of n where |P(n)| sets a new record.at n=32A000092
- Smallest nonnegative number that is the sum of 3 squares in exactly n ways.at n=24A000437
- Expansion of 1/(1-x)^2/(1-x^2)/(1-x^4)/(1-x^10)/(1-x^20).at n=41A001307
- Number of solid partitions of n supported on graph of cube.at n=19A003404
- Numbers k such that 4!*(2k-5)!/(k!*(k-1)!) is an integer.at n=34A004784
- 5!(2n-6)!/n!(n-1)! is an integer.at n=39A004785
- a(n) = floor(n*phi^10), where phi is the golden ratio, A001622.at n=29A004925
- Coordination sequence T1 for Zeolite Code AFT.at n=45A008026
- Coordination sequence T1 for Zeolite Code MTW.at n=39A008196
- Coordination sequence T1 for feldspar.at n=40A008254
- Coordination sequence T2 for feldspar.at n=40A008255
- Coordination sequence T2 for Zeolite Code AFX.at n=45A009865
- Coordination sequence for MgNi2, Position Ni2.at n=15A009932
- Coordination sequence for Ni2In, Position Ni1 and In.at n=18A009941
- Coordination sequence for Ni2In, Position Ni2.at n=18A009942
- a(0) = 1, a(n) = 11*n^2 + 2 for n>0.at n=18A010003
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BEA = Beta Na7[Al7Si57O128] starting with a T6 atom.at n=11A019072
- Numbers k such that the continued fraction for sqrt(k) has period 52.at n=16A020391
- 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 58.at n=15A031556
- Coordination sequence T4 for Zeolite Code SBE.at n=48A033607