5482
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 8226
- Proper Divisor Sum (Aliquot Sum)
- 2744
- 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
- 2740
- Möbius Function
- 1
- Radical
- 5482
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 129
- 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
- Numbers k such that the continued fraction for sqrt(k) has period 53.at n=7A020392
- Base-6 palindromes that start with 4.at n=22A043013
- Numbers whose base-2 representation has exactly 12 runs.at n=9A043579
- Numbers whose base-4 representation contains exactly four 1's and three 2's.at n=0A045108
- Nonprime numbers k such that sum of aliquot divisors of k is a cube.at n=28A048698
- INVERT transform of A000081 = [1, 1, 1, 2, 4, 9, 20, 48, 115, 286,...].at n=10A051529
- Number of configurations of the sliding block 8-puzzle that require a minimum of n moves to be reached, starting with the empty square in the center.at n=16A089474
- Indices of primes of the form k^2 - 11.at n=29A091273
- a(n)=B(2n,4)/B(2n) (see comment).at n=3A096047
- Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutations A127379/A127380 and A127381/A127382.at n=10A127384
- a(n) = 7*n^2 + 14*n + 1.at n=27A131878
- Triangle of Gely numbers, read by rows.at n=39A132795
- Triangle T(n,k) read by rows: T(n,k) = 1 if k=1 or k=n, otherwise T(n,k) = (3*n-3*k+1)*T(n-1,k-1) + (3*k-2)*T(n-1,k).at n=17A142458
- Triangle T(n,k) read by rows: T(n,k) = 1 if k=1 or k=n, otherwise T(n,k) = (3*n-3*k+1)*T(n-1,k-1) + (3*k-2)*T(n-1,k).at n=18A142458
- a(n) = (1/18)*(9*n^2 + 21*n + 10 - 4^(n+2)*(3*n+5) + 10*7^(n+1)).at n=3A142976
- Third subdiagonal of A142458: a(n) = A142458(n+3,n).at n=2A144380
- a(n) = A142458(n, 1 + floor(n/2)).at n=5A154425
- Triangle of coefficients of polynomials defined by Binet form: P(n,x) = ((x + d)^n - (x - d)^n)/(2*d), where d = sqrt(x+4).at n=50A162517
- Partial sums of A160120.at n=28A162778
- a(n) is the least value of k such that the decimal expansion of n^k contains eight or more consecutive identical digits.at n=11A217163