4353
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
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5808
- Proper Divisor Sum (Aliquot Sum)
- 1455
- 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
- 2900
- Möbius Function
- 1
- Radical
- 4353
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 139
- 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
- Length of one version of Kolakoski sequence {A000002(i)} at n-th growth stage.at n=21A001083
- Numbers that are the sum of 6 positive 6th powers.at n=31A003362
- Expansion of x*(1+x-x^2)/((1-x)^4*(1+x)).at n=35A005744
- Coordination sequence T5 for Zeolite Code MFI.at n=42A008168
- Coordination sequence T7 for Zeolite Code MWW.at n=44A024992
- Squarefree n such that Q(sqrt(n)) has class number 5.at n=30A029705
- 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 42.at n=35A031540
- a(1) = 1, a(2n) = 16a(n), a(2n+1) = a(2n)+1.at n=13A033052
- a(1) = 2; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=37A033679
- One-dimensional cellular automaton 'sigma' (Rule 150).at n=12A038185
- Sums of 3 distinct powers of 4.at n=26A038471
- Base-8 palindromes that start with 1.at n=22A043021
- Numbers having, in base 16, (sum of even run lengths)=(sum of odd run lengths).at n=30A044887
- Numbers whose base-4 representation contains exactly four 0's and three 1's.at n=6A045036
- Table read by rows: T(n,k) = number of 2-connected planar graphs with n >= 1 nodes and 0 <= k <= 3n-6 edges.at n=90A049336
- Handsome numbers (A007532) representable as a sum of any positive powers of their digits in two distinct ways, not counting different powers of duplicated digits as distinct.at n=39A050240
- Expansion of 1/(1-4*x-x^3).at n=6A052927
- Positive numbers whose product of digits is 12 times their sum.at n=42A062045
- Numbers k for which phi(prime(k)) is a square.at n=34A062325
- Number of 3-dimensional polyominoes (or polycubes) with n cells and rotational symmetry group of order exactly 4.at n=19A066281