3244
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 5684
- Proper Divisor Sum (Aliquot Sum)
- 2440
- 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
- 1620
- Möbius Function
- 0
- Radical
- 1622
- 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
- 136
- 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
- Number of asymmetric trees with n nodes (also called identity trees).at n=17A000220
- Number of n-stacks with strictly receding walls, or the number of Type A partitions of n in the sense of Auluck (1951).at n=31A001522
- Centered triangular numbers: a(n) = 3*n*(n-1)/2 + 1.at n=46A005448
- Positive even numbers that are not the sum of a pair of twin primes.at n=29A007534
- Coordination sequence T3 for Zeolite Code ATS.at n=41A008040
- Coordination sequence for quartz.at n=32A008261
- Coordination sequence T2 for Zeolite Code -PAR.at n=40A009856
- Population of "Triangle" cellular automaton at n-th generation.at n=29A018189
- Numbers k such that the continued fraction for sqrt(k) has period 68.at n=4A020407
- Numbers k such that Fibonacci(k) == 3 (mod k).at n=38A023175
- Every prefix prime in base 5 (written in base 5).at n=11A024765
- a(n) = Sum_{k=1..n} floor((n/k) * floor((n/k) * floor(n/k))).at n=13A024922
- a(n) = Sum_{k=1..n} k*floor( prime(k)/k ).at n=42A024927
- Sequence satisfies T^2(a)=a, where T is defined below.at n=50A027586
- 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=36A031526
- Multiplicity of highest weight (or singular) vectors associated with character chi_2 of Monster module.at n=50A034390
- Multiplicity of highest weight (or singular) vectors associated with character chi_25 of Monster module.at n=35A034413
- Numbers n such that BCR(n) = n, where BCR = binary-complement-and-reverse = take one's complement then reverse bit order.at n=49A035928
- Sums of 6 distinct powers of 3.at n=22A038468
- Numbers having three 4's in base 9.at n=8A043471