2832
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 20
- Divisor Sum
- 7440
- Proper Divisor Sum (Aliquot Sum)
- 4608
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 928
- Möbius Function
- 0
- Radical
- 354
- Omega Function (Ω)
- 6
- 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
- 35
- 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
- Numbers that are the sum of 11 positive 7th powers.at n=17A003378
- Coordination sequence T2 for Zeolite Code ATV.at n=34A008044
- Coordination sequence T5 for Zeolite Code VET.at n=31A009906
- Powers of fourth root of 18 rounded up.at n=11A018098
- Number of "bifix-free" words of length n over a four-letter alphabet.at n=6A019309
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly nine 1's.at n=4A020445
- Sequence satisfies T^2(a)=a, where T is defined below.at n=41A027588
- Numbers k such that k^2 has only even digits.at n=44A030097
- Numbers with 20 divisors.at n=38A030638
- Concatenation of n and n + 4 or {n,n+4}.at n=27A032609
- Number of partitions satisfying cn(0,5) = cn(1,5) + cn(4,5).at n=41A039858
- Numbers n such that string 8,6 occurs in the base 9 representation of n but not of n-1.at n=37A044329
- Numbers n such that string 3,2 occurs in the base 10 representation of n but not of n-1.at n=31A044364
- Numbers n such that string 8,6 occurs in the base 9 representation of n but not of n+1.at n=37A044710
- Numbers n such that string 3,2 occurs in the base 10 representation of n but not of n+1.at n=31A044745
- Central column of arrays in A057027 and A057028.at n=37A057029
- Number of self-avoiding polygons of area n with 2 (self-avoiding polygon) holes on square lattice (not allowing rotations).at n=3A057407
- Numbers k such that phi(x) = k has exactly 6 solutions.at n=42A060669
- Expansion of (1-x)^(-1)/(1-x+x^3).at n=55A077869
- Expansion of 1/(1 - x^2 - x^3 + x^4).at n=62A077905