7836
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 24
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 18312
- Proper Divisor Sum (Aliquot Sum)
- 10476
- 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
- 2608
- Möbius Function
- 0
- Radical
- 3918
- Omega Function (Ω)
- 4
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 83
- 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
- Convolution of natural numbers with composite numbers.at n=28A023539
- Numbers having three 6's in base 9.at n=33A043479
- Discriminants of real quadratic number fields K with class number 2 such that the Hilbert class field of K is K(sqrt(3)).at n=41A052477
- Nearest integer to log(n!)^(1 + log(n)).at n=9A062474
- Row sums of a triangle related to the Jacobsthal polynomials.at n=14A108742
- The (1,4)-entry in the matrix M^n, where M is the 4 X 4 matrix {{0, -1, -1, 1}, {1, -1, 0, 0}, {0, 1, 1, 0}, {0, 0, 1, 1 }}.at n=33A122789
- Partial sums of A100119. Sum of first n of the n-th centered n-gonal numbers.at n=15A130218
- Decimal value of the concatenation of first n multiples of 3 in binary.at n=3A164945
- Even numbers that can only be expressed as the sum of two distinct twin prime pairs in two ways: n = p+(q+2) = (p+2)+q where (3,5) < (p,p+2) < (q,q+2).at n=71A179014
- Number of nondecreasing arrangements of n nonzero numbers in -(n+2)..(n+2) with sum zero.at n=6A188328
- T(n,k)=Number of nondecreasing arrangements of n nonzero numbers in -(n+k-2)..(n+k-2) with sum zero.at n=51A188333
- Number of nondecreasing arrangements of 7 nonzero numbers in -(n+5)..(n+5) with sum zero.at n=3A188337
- Number of nX2 array permutations with each element moved but moved no more than a city block distance of two.at n=4A188976
- Number of nX5 array permutations with each element moved but moved no more than a city block distance of two.at n=1A188979
- T(n,k)=Number of nXk array permutations with each element moved but moved no more than a city block distance of two.at n=16A188981
- T(n,k)=Number of nXk array permutations with each element moved but moved no more than a city block distance of two.at n=19A188981
- Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and -1<=w+x+y<=1.at n=30A211615
- Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w^3<=x^3+y^3.at n=23A211807
- Minimum value unattainable as the sum of 5 attained values of i^2 with i in 0..n.at n=43A225278
- Number of endofunctions on [n] with distinct cardinalities of the nonempty preimages.at n=6A231807