5675
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 7068
- Proper Divisor Sum (Aliquot Sum)
- 1393
- 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
- 4520
- Möbius Function
- 0
- Radical
- 1135
- Omega Function (Ω)
- 3
- 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
- 129
- 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
- no
- Odd
- yes
Appears in sequences
- Number of ways in which n identical balls can be distributed among 4 boxes in a row such that each pair of adjacent boxes contains at least 4 balls.at n=24A005337
- Coordination sequence T3 for Zeolite Code FER.at n=46A008108
- Number of monic polynomials with integer coefficients of degree n with all roots in unit disc.at n=13A051894
- Numbers n such that n | 9^n + 7^n + 5^n + 3^n +1.at n=7A057831
- Where records occur in A074078.at n=6A074098
- a(n) = 6^n - 5^n + 4^n.at n=5A083326
- Starting positions of strings of three 4's in the decimal expansion of Pi.at n=8A083615
- Triangle read by rows: numerators of Cotesian numbers C(n,k) (0 <= k <= n).at n=58A100640
- Numerator of Cotesian number C(n,3).at n=7A100647
- Table T(n,k), n>=1 and k>=0, read by antidiagonals, related to A111146.at n=40A113326
- a(n) = Sum_{k=0..n} 5^k*A111146(n,k).at n=4A113330
- Start with 1 and repeatedly reverse the digits and add 64 to get the next term.at n=22A118159
- a(n) = Sum_{k=1..phi(n)-1} t(n,k)*t(n,k+1), where t(n,k) is the k-th positive integer which is coprime to n and phi(n) is the number of positive integers which are <= n and are coprime to n.at n=33A119584
- a(n) = n*(9*n+2).at n=25A147296
- 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, 0, 1), (-1, 1, -1), (1, 0, 0), (1, 1, 0)}.at n=7A150319
- a(n) = A030068(4n+3).at n=34A169740
- Positive integers of the form (6*m^2 + 1)/11.at n=18A179337
- Matula-Goebel numbers of rooted trees with no perfect matching and such that 2 is an eigenvalue of the Laplacian matrix.at n=20A202852
- (A209988)/4.at n=36A209989
- Numbers k such that k^3 + 2 is an emirp.at n=42A227271