5782
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 10260
- Proper Divisor Sum (Aliquot Sum)
- 4478
- 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
- 2436
- Möbius Function
- 0
- Radical
- 826
- 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
- 49
- 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
- Coordination sequence T1 for Zeolite Code MEP.at n=45A008157
- Coordination sequence for CaF2(2), F position.at n=34A009925
- Coordination sequence for MgNi2, Position Ni1.at n=19A009933
- a(0) = 1, a(n) = 5*n^2 + 2 for n>0.at n=34A010001
- a(0) = 1, a(n) = 20*n^2 + 2 for n>0.at n=17A010010
- a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = (Lucas numbers), t = A023533.at n=36A024476
- a(n) = position of 3*n^3 in A003072.at n=25A024970
- a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n-k+1), where k = floor(n/2), s = A000032, t = A023533.at n=35A025096
- a(n) = Sum_{0<=j<=i, 0<=i<=n} A027907(i, j).at n=8A027915
- Numbers whose base-4 representation contains exactly four 1's and three 2's.at n=7A045108
- Number of ternary words of length n (beginning 0) with autocorrelation function 2^(n-1)+3.at n=11A045697
- Number of partitions of n with equal nonzero number of parts congruent to each of 0, 2, 3 and 4 (mod 5).at n=62A046786
- a(n) is the area of the triangle with sides prime(n), prime(n+2) and prime(n+4), rounded down to the nearest integer.at n=24A096384
- Positive integers n such that n^19 + 1 is semiprime (A001358).at n=44A104657
- Number of hyperforests on n unlabeled nodes, assuming that each edge contains at least two nodes, with all components of prime orders.at n=11A144979
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, 0), (1, 0, -1), (1, 0, 0), (1, 1, -1)}.at n=10A148043
- Number of cubic equations ax^3 + bx^2 + cx + d = 0 with integer coefficients |a|,|b|,|c|,|d| <= n, a <> 0, having three real roots, of which at least two are equal.at n=27A155192
- The number of homogeneous trisubstituted linear alkanes.at n=20A159938
- Partial sums of A004207.at n=38A176718
- The number of different classes of 2-dimensional convex lattice polytopes having volume n/2 up to unimodular equivalence.at n=33A187015