3284
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 5754
- Proper Divisor Sum (Aliquot Sum)
- 2470
- 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
- 1642
- Omega Function (Ω)
- 3
- 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
- 30
- 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
- Coordination sequence T5 for Zeolite Code RSN.at n=37A009889
- Coordination sequence T3 for Zeolite Code VSV.at n=36A009916
- Pisot sequence E(8,10), a(n) = floor( a(n-1)^2/a(n-2) + 1/2 ).at n=24A010916
- Numbers k such that the continued fraction for sqrt(k) has period 42.at n=34A020381
- Plaindromes: numbers whose digits in base 3 are in nondecreasing order.at n=38A023745
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Fibonacci numbers), t = (composite numbers).at n=19A025081
- a(0) = 16, a(n+1) = 3a(n) - (6-n)^2.at n=8A028493
- Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 16 (most significant digit on right).at n=22A029509
- 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 28.at n=39A031526
- Number of 5-ary rooted trees with n nodes and height exactly 4.at n=16A036635
- Numbers having four 1's in base 5.at n=26A043356
- Numbers having three 4's in base 9.at n=19A043471
- Numbers k such that string '84' occurs in the base 10 representation of k but not of k-1.at n=35A044416
- Numbers n such that string 8,4 occurs in the base 10 representation of n but not of n+1.at n=35A044797
- Numbers k such that k and k-1 both have 6 divisors.at n=35A049104
- Values of k for which A075059(k) = A003418(k) + 1 is prime.at n=71A049537
- a(n) = Sum_{i=0..floor(n/2)} T(2i,n-2i) where T is A049627.at n=39A049630
- a(n) = Sum_{i=0..floor(n/2)} T(2i+1,n-2i-1) where T is A049627.at n=39A049631
- Starting positions of strings of 2 0's in the decimal expansion of Pi.at n=23A050201
- Number of partitions of n into at most 1 copy of 1, 2 copies of 2, 3 copies of 3, ... .at n=36A052335