1796
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
- 5
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 3150
- Proper Divisor Sum (Aliquot Sum)
- 1354
- 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
- 896
- Möbius Function
- 0
- Radical
- 898
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 117
- 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
- Numbers that are the sum of 11 positive 8th powers.at n=7A003389
- Coordination sequence T1 for Zeolite Code MEP.at n=25A008157
- Coordination sequence T3 for Zeolite Code MEP.at n=25A008159
- Coordination sequence T1 for Zeolite Code MER.at n=31A008160
- Coordination sequence T7 for Zeolite Code MTW.at n=28A008202
- Coordination sequence T3 for Zeolite Code THO.at n=30A008240
- Coordination sequence T2 for Zeolite Code AFX.at n=32A009865
- Coordination sequence T5 for Zeolite Code RUT.at n=28A009901
- Numbers k such that the geometric mean of phi(k) and sigma(k) is an integer.at n=28A011257
- Phi(n) + 5 | sigma(n + 5).at n=24A015784
- Five iterations of Reverse and Add are needed to reach a palindrome.at n=42A015982
- Number of lines through exactly 10 points of an n X n grid of points.at n=52A018817
- Numbers k such that the continued fraction for sqrt(k) has period 34.at n=9A020373
- Fibonacci sequence beginning 4, 10.at n=12A022382
- Expansion of Product_{m>=1} (1+q^m)^(-4).at n=18A022599
- a(n) = position of 5 + n^2 in A004432.at n=45A024808
- Partial sums of the sequence of prime powers (A000961).at n=39A024918
- a(n) = p(1)p(n) + p(2)p(n-1) + ... + p(k)p(n-k+1), where k = [ n/2 ], p = A000040, the primes.at n=14A025129
- a(n) = [ 2nd elementary symmetric function of {sqrt(k)} ], k = 1,2,...,n.at n=18A025193
- a(n) = Sum_{k=0..n-3} T(n,k) * T(n,k+3), with T given by A026637.at n=4A026969