5346
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 13104
- Proper Divisor Sum (Aliquot Sum)
- 7758
- 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
- 1620
- Möbius Function
- 0
- Radical
- 66
- Omega Function (Ω)
- 7
- 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
- yes
- Harshad Number
- yes
- Narcissistic Number
- no
- Collatz Steps
- 116
- 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
- Maximal kissing number of n-dimensional laminated lattice.at n=17A002336
- Alkane (or paraffin) numbers l(7,n).at n=20A005994
- a(n) = 3 + n/2 + 7*n^2/2.at n=39A006124
- Add 1, multiply by 1, add 2, multiply by 2, etc., start with 2.at n=12A019460
- First row of spectral array W(sqrt(3/2)).at n=10A022163
- Theta series of laminated lattice LAMBDA_17.at n=2A023939
- 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 72.at n=12A031570
- Denominators of continued fraction convergents to sqrt(488).at n=3A041931
- Gilda's numbers: numbers k such that if a Fibonacci sequence is formed with first term = a certain absolute value between decimal digits in k (A007953) and second term = sum of decimal digits in k (A040997), then k itself occurs as a term in the sequence.at n=20A042947
- Let Oc(n) = A005900(n) = n-th octahedral number. Consider all integer triples (i,j,k), j >= k > 0, with Oc(i) = Oc(j)+Oc(k), ordered by increasing i; sequence gives k values.at n=6A053678
- Number of unlabeled 2-ary cacti having n polygons. Also number of bicolored plane trees with n edges.at n=11A054357
- Number of unlabeled asymmetric ternary cacti having n triangles.at n=8A054422
- Number of inequivalent n-variable 3-valued Post functions under action of complementing group D(n,3).at n=1A058976
- a(n) = 2*n*(2*n^2 + 1).at n=11A061804
- Numbers n such that phi(3n-1) = sigma(n).at n=34A067232
- Numbers k such that sigma(k) = phi(k*omega(k)-1).at n=29A067878
- a(n) = n*(n+1)*(2*n^2+1)/6.at n=11A071238
- Row sums of triangle A074135.at n=21A074132
- Sum of terms in each group in A074147.at n=21A074149
- Non-palindromic solutions to sigma(R(n)) = sigma(n), where R = A004086 is digit-reversal.at n=6A085329