3269
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 3744
- Proper Divisor Sum (Aliquot Sum)
- 475
- 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
- 2796
- Möbius Function
- 1
- Radical
- 3269
- 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
- yes
- 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
- Number of positive integers <= 2^n of form 2*x^2 + 3*y^2.at n=14A000075
- Number of permutations of length n with 2 cycle lengths.at n=4A005772
- Number of points on surface of square pyramid: 3*n^2 + 2 (n>0).at n=33A005918
- Coordination sequence T1 for Zeolite Code CAS.at n=35A008063
- Coordination sequence T2 for Zeolite Code RTE.at n=39A009891
- a(0) = 1, a(n) = 27*n^2 + 2 for n>0.at n=11A010017
- Number of inequivalent ways (mod D_4) a pair of checkers can be placed on an n X n board.at n=14A014409
- Numbers k such that the continued fraction for sqrt(k) has period 36.at n=42A020375
- Sequence satisfies T(a)=a, where T is defined below.at n=43A027592
- Numbers whose base-5 representation has exactly 6 runs.at n=11A043606
- Numbers k such that the string 3,2 occurs in the base 9 representation of k but not of k-1.at n=45A044280
- Numbers n such that string 6,9 occurs in the base 10 representation of n but not of n-1.at n=35A044401
- Numbers n such that string 2,6 occurs in the base 10 representation of n but not of n+1.at n=36A044739
- Numbers n such that string 6,9 occurs in the base 10 representation of n but not of n+1.at n=35A044782
- Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 12.at n=20A050961
- Coordination sequence T2 for Zeolite Code MTF.at n=34A057305
- Coordination sequence T5 for Zeolite Code MTF.at n=34A057308
- Smallest "inconsummate number" in base n greater than in the previous base.at n=44A061381
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 49 ).at n=35A063322
- Semiprimes p1*p2 such that p2 > p1 and p2 mod p1 = 5.at n=29A064903