3349
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 3564
- Proper Divisor Sum (Aliquot Sum)
- 215
- 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
- 3136
- Möbius Function
- 1
- Radical
- 3349
- 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
- no
- Odd
- yes
Appears in sequences
- A Fielder sequence.at n=14A001640
- Numbers k such that 9*2^k - 1 is prime.at n=21A002236
- Oscillates under partition transform.at n=37A007211
- Coordination sequence T1 for Zeolite Code MEL.at n=37A008150
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MFI = ZSM-5 Nan[AlnSi96-nO192] starting with a T11 atom.at n=11A019166
- Numbers k such that the continued fraction for sqrt(k) has period 19.at n=22A020358
- Triangle read by rows: square of the lower triangular mean matrix.at n=38A027446
- Third column of A027446.at n=6A027458
- Arrange digits of cubes in ascending order.at n=34A032553
- Numbers whose set of base-14 digits is {1,3}.at n=19A032921
- Number of partitions satisfying (cn(2,5) = cn(3,5) = 0).at n=47A036820
- Numerators of continued fraction convergents to sqrt(358).at n=7A041678
- Denominators of continued fraction convergents to sqrt(669).at n=9A042287
- Denominators of continued fraction convergents to sqrt(947).at n=9A042833
- Numbers n such that string 4,9 occurs in the base 10 representation of n but not of n-1.at n=36A044381
- Numbers n such that string 3,4 occurs in the base 10 representation of n but not of n+1.at n=37A044747
- Numbers n such that string 4,9 occurs in the base 10 representation of n but not of n+1.at n=36A044762
- a(n) = (117*n^2 - 99*n + 2)/2.at n=8A050408
- Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 13.at n=10A051978
- Discriminants of real quadratic number fields K with class number 2 such that the Hilbert class field of K is K(sqrt(17)).at n=34A052479