5776
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 25
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 15
- Divisor Sum
- 11811
- Proper Divisor Sum (Aliquot Sum)
- 6035
- 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
- 2736
- Möbius Function
- 0
- Radical
- 38
- Omega Function (Ω)
- 6
- 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
- yes
- 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
- yes
- Achilles Number
- no
- Perfect Power
- yes
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- yes
- Odd
- no
Appears in sequences
- Squares of Lucas numbers.at n=9A001254
- Associated Mersenne numbers.at n=18A001350
- A Fielder sequence: a(n) = a(n-1) + a(n-3) + a(n-4), n >= 4.at n=18A001638
- Expansion of 1/((1+x)*(1-x)^11).at n=6A001786
- Alternate Lucas numbers - 2.at n=9A004146
- Number of restricted circular combinations.at n=16A006499
- Squares of even Lucas numbers.at n=3A014731
- Expansion of (1+x^2)/(1-2*x+x^3).at n=16A014739
- Even squares: a(n) = (2*n)^2.at n=38A016742
- a(n) = (3*n+1)^2.at n=25A016778
- a(n) = (4*n)^2.at n=19A016802
- a(n) = (5*n + 1)^2.at n=15A016862
- a(n) = (6*n + 4)^2.at n=12A016958
- a(n) = (7*n + 6)^2.at n=10A017054
- a(n) = (8*n + 4)^2.at n=9A017114
- a(n) = (9*n + 4)^2.at n=8A017210
- a(n) = (10*n + 6)^2.at n=7A017342
- a(n) = (11*n + 10)^2.at n=6A017510
- a(n) = (12*n + 4)^2.at n=6A017570
- a(n) is least k such that k and k+n are adjacent nontrivial powers of positive integers, or 0 if no such k apparently exists.at n=55A023056