3274
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
- 4
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 4914
- Proper Divisor Sum (Aliquot Sum)
- 1640
- 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
- 1636
- Möbius Function
- 1
- Radical
- 3274
- 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
- 43
- 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
- Number of positive integers <= 2^n of form x^2 + 4 y^2.at n=14A000072
- Expansion of 1/(1-x)^2/(1-x^2)/(1-x^4)/(1-x^10)/(1-x^20).at n=40A001307
- Coordination sequence T1 for Zeolite Code JBW.at n=38A008121
- Coordination sequence T4 for Zeolite Code STI.at n=39A008237
- Coordination sequence T1 for Zeolite Code YUG.at n=37A008247
- a(n) = floor( n*(n-1)*(n-2)/26 ).at n=45A011908
- Magic numbers: atoms with full shells containing any of these numbers of electrons are considered electronically stable.at n=24A018227
- Numbers k such that the continued fraction for sqrt(k) has period 33.at n=6A020372
- Sum of digits in n-th term of A006711.at n=26A022480
- Place where n-th 1 occurs in A023133.at n=45A022795
- Partial sums of the sequence of prime powers (A000961).at n=50A024918
- Numbers n such that string 7,4 occurs in the base 10 representation of n but not of n-1.at n=35A044406
- Numbers n such that string 7,4 occurs in the base 10 representation of n but not of n+1.at n=35A044787
- Values of k for which A075059(k) = A003418(k) + 1 is prime.at n=61A049537
- Numbers n such that n*M127 + 1 is prime, where M127 = 2^127 - 1.at n=38A057440
- Engel expansion of Sum_{k>=0} 1/(1 + k)^k.at n=5A063184
- Least k such that k*10^n+1, k*10^n+3, k*10^n+7 and k*10^n+9 are all prime.at n=14A064281
- Intersection of A014486 and A079946.at n=47A081292
- A014486-encodings of the plane general trees whose rightmost subtree (branching from the root) is just a stick: /.at n=39A085224
- Numbers n such that numerator(Bernoulli(2*n)/(2*n)) is different from numerator(Bernoulli(2*n)/(2*n*(2*n+1))).at n=10A090177