4534
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 6804
- Proper Divisor Sum (Aliquot Sum)
- 2270
- 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
- 2266
- Möbius Function
- 1
- Radical
- 4534
- 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
- 90
- 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
- yes
- Odd
- no
Appears in sequences
- Coordination sequence T7 for Zeolite Code MFS.at n=42A008179
- a(n) = floor(n*(n - 1)*(n - 2)/31).at n=53A011913
- Coordination sequence T3 for Zeolite Code OSI.at n=44A016432
- Coordination sequence T3 for Zeolite Code TER.at n=45A016435
- Number of 2's in n-th term of A006711.at n=33A022478
- n written in fractional base 7/4.at n=46A024641
- Number of chiral pairs of polyominoes with n cells.at n=10A030228
- 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 66.at n=16A031564
- Numbers having three 6's in base 8.at n=28A043447
- A hierarchical sequence (S(W2{3}*) - see A059126).at n=7A059142
- Number of (unordered) ways of making change for n cents using coins of 1/2, 1, 2, 3, 5, 10, 20, 25, 50, 100 cents (all historical U.S.A. coinage denominations up to 100 cents).at n=33A067997
- Least edge-length of a square dissectable into at least n squares in the Mrs. Perkins's quilt problem.at n=32A089046
- Smallest semiprime equal to the sum of n distinct primes.at n=45A104646
- Main diagonal of A090806.at n=12A108469
- Numbers n such that p(5n) is prime, where p(n) is the number of partitions of n.at n=16A114166
- Row squared sums of Catalan triangle A033184.at n=5A116364
- Nonisomorphic catacondensed monoheptafusenes (see reference for precise definition).at n=7A121073
- Expansion of x*(1 + 4*x + 6*x^2 + 6*x^3)/((1-x)*(1 - 11*x^2 - 12*x^3)).at n=6A122058
- Positions of 10 after decimal point in decimal expansion of 1/Pi.at n=37A134260
- Triangle read by rows: T(n,k) = (1/4)*(A007318(n,k) - 6*A008292(n+1,k+1) + 9*A060187(n+1,k+1)).at n=29A142175