3530
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 6372
- Proper Divisor Sum (Aliquot Sum)
- 2842
- 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
- 1408
- Möbius Function
- -1
- Radical
- 3530
- 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
- 30
- 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
- Numbers k such that k^4 can be written as a sum of four positive 4th powers.at n=17A003294
- Number of points on surface of tetrahedron; coordination sequence for sodalite net (equals 2*n^2+2 for n > 0).at n=42A005893
- Coordination sequence T2 for Zeolite Code EDI.at n=42A008085
- Coordination sequence T2 for Zeolite Code THO.at n=42A008239
- Coordination sequence T1 for Zeolite Code TON.at n=37A008241
- Coordination sequence for 5-dimensional cubic lattice.at n=7A008413
- Coordination sequence for body-centered tetragonal lattice.at n=21A008527
- Coordination sequence for NiAs(2), As position.at n=28A009945
- Coordination sequence for NiAs(2), Ni position.at n=28A009946
- a(0) = 1, a(n) = 18*n^2 + 2 for n>0.at n=14A010008
- a(n) = (d(n) - r(n))/5, where d = A026037 and r is the periodic sequence with fundamental period (1,2,0,2,0).at n=35A026039
- Numbers in which all pairs of consecutive base-6 digits differ by 2.at n=42A033084
- a(n) = a(n-1) + a(floor(n/2)), a(1) = 1.at n=45A033485
- Coordination sequence T3 for Zeolite Code CFI.at n=39A033601
- Number of points of L1 norm 7 in cubic lattice Z^n.at n=5A035601
- Numbers n such that string 5,3 occurs in the base 10 representation of n but not of n-1.at n=38A044385
- Numbers n such that string 3,0 occurs in the base 10 representation of n but not of n+1.at n=39A044743
- Numbers whose base-5 representation contains exactly two 0's and three 1's.at n=38A045168
- Numbers with exactly 3 distinct palindromic prime factors.at n=42A046401
- a(n) = Sum_{h=0..n, k=0..n} T(h,k), array T counting knights' moves as in A049604.at n=20A047881