2346
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
- 3
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 5184
- Proper Divisor Sum (Aliquot Sum)
- 2838
- 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
- 704
- Möbius Function
- 1
- Radical
- 2346
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- yes
- 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
- 120
- 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
- yes
- Odd
- no
Appears in sequences
- Boustrophedon transform of 1, 2, 2, 2, 2, ...at n=7A000674
- Coordination sequence T5 for Zeolite Code MFS.at n=30A008177
- Second hexagonal numbers: a(n) = n*(2*n + 1).at n=34A014105
- Even triangular numbers.at n=34A014494
- Binomial coefficients C(n,67).at n=2A017731
- Binomial coefficients C(69,n).at n=2A017785
- a(n) is the concatenation of n and 2n.at n=22A019550
- a(n) = n*(n+5).at n=46A028557
- (prime(n)-1)(prime(n)-3)/8.at n=32A030005
- a(n) = [ Gamma(sqrt(n)) ].at n=57A033295
- a(n) = 2*n*(4*n + 1).at n=17A033585
- Coordination sequence T4 for Zeolite Code SBE.at n=39A033607
- If n is composite, replace n with the concatenation of its nontrivial divisors, otherwise a(n) = n.at n=11A037279
- Coordination sequence T8 for Zeolite Code SFF.at n=32A038435
- Number of partitions satisfying cn(0,5) + cn(1,5) + cn(4,5) < cn(2,5) + cn(3,5).at n=31A039880
- Denominators of continued fraction convergents to sqrt(708).at n=11A042363
- Numbers whose base-2 representation has exactly 10 runs.at n=12A043577
- a(n) = (s(n)-1)/2, where s(n) is the n-th number whose base-2 representation has exactly 11 runs.at n=13A043691
- Numbers n such that number of runs in the base 2 representation of n is congruent to 1 mod 9.at n=23A043755
- Numbers n such that number of runs in the base 2 representation of n is congruent to 0 mod 10.at n=12A043763