3441
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 4864
- Proper Divisor Sum (Aliquot Sum)
- 1423
- 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
- 2160
- Möbius Function
- -1
- Radical
- 3441
- 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
- 105
- 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
- no
- Odd
- yes
Appears in sequences
- Total diameter of unlabeled trees with n nodes.at n=11A001851
- Number of complete mappings of the cyclic group Z_{2n+1}.at n=5A003111
- a(n) = n*(5*n+1)/2.at n=37A005475
- Least k such that binomial(k,n) has n or more distinct prime factors.at n=49A005733
- Number of cyclic neofields of order n.at n=8A006609
- Coordination sequence T3 for Zeolite Code DAC.at n=37A008069
- Numbers k such that the continued fraction for sqrt(k) has period 38.at n=36A020377
- (d(n)-r(n))/5, where d = A008778 and r is the periodic sequence with fundamental period (0,3,1,0,1).at n=43A026053
- 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 38.at n=24A031536
- Concatenation of n and n+7.at n=33A032612
- Coordination sequence Z12 for Zeolite Code STT.at n=39A038416
- Numbers n such that string 4,1 occurs in the base 10 representation of n but not of n-1.at n=38A044373
- Numbers n such that string 4,1 occurs in the base 10 representation of n but not of n+1.at n=38A044754
- a(1) = 5; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=34A046255
- a(1) = 5; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=33A046255
- 2-ranks of difference sets constructed from Glynn type II hyperovals.at n=11A049114
- a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 4, where m = n - 1 - 2^p and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 3, and a(3) = 1.at n=12A049966
- Pinwheel numbers: a(n) = 2*n^2 + 6*n + 1.at n=40A059993
- Each permutation in the list A060117 converted to Site Swap notation, with "zero throws" (fixed elements) replaced with n, the length of siteswap.at n=18A060495
- Positive numbers whose product of digits is four times their sum.at n=33A062036