4348
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
- 5
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 7616
- Proper Divisor Sum (Aliquot Sum)
- 3268
- 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
- 2172
- Möbius Function
- 0
- Radical
- 2174
- 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
- 139
- 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
- No-3-in-line problem on n X n grid: total number of ways of placing 2n points on n X n grid so no 3 are in a line. No symmetries are taken into account.at n=11A000755
- a(n) = (2*n-1)*a(n-1) - (n-1)*a(n-2) with a(0) = a(1) = 1.at n=6A002801
- Coordination sequence T4 for Zeolite Code MTW.at n=43A008199
- Coordination sequence T4 for Zeolite Code NES.at n=42A008208
- Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AEI = AlPO4-18 [Al24P24O96] starting with a T3 atom.at n=5A018943
- Convolution of A001950 with itself.at n=14A023667
- Diagonal sum of left-justified array T given by A027023.at n=23A027037
- Numbers k such that 243*2^k+1 is prime.at n=19A032498
- Coordination sequence T3 for Zeolite Code STF.at n=44A038442
- Numbers ending with '8' that are the difference of two positive cubes.at n=19A038863
- (n+4)^3 - n^3.at n=16A038866
- Numbers whose base-4 representation contains exactly three 0's and three 3's.at n=13A045079
- a(n) = 2*a(n-1) + a(n-2); a(0)=1, a(1)=4.at n=9A048654
- a(n) = (s(n)-(n mod 2)) / n where s(n) is A006533.at n=48A056891
- Numbers with no zeros in their cubes such that the products of the digits of their cubes are also cubes.at n=29A067071
- Length of periodic part of continued fraction expansion of square root of A051451(n), i.e., sqrt(lcm(1..x)) where x is a prime power from A000961.at n=18A077636
- a(n) = n*(2*n^2 -3*n +7)/6 = C(n, 1) + C(n, 2) + 2*C(n, 3).at n=23A081489
- Increasing gaps in A038593 (upper terms).at n=9A093362
- Bisection of A048654.at n=4A100525
- Fixed-j dispersion for Q = 8: Square array D(g,h) (g, h >= 1), read by ascending antidiagonals.at n=32A120860