8644
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
- 5
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 15134
- Proper Divisor Sum (Aliquot Sum)
- 6490
- 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
- 4320
- Möbius Function
- 0
- Radical
- 4322
- 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
- 34
- 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
- Number of partitions into non-integral powers.at n=15A000160
- Number of bipartite partitions of n white objects and 4 black ones.at n=14A000465
- Molien series for A_6.at n=47A008629
- n written in fractional base 10/8.at n=34A024663
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 48 ones.at n=28A031816
- Pisot sequence L(6,7).at n=21A048585
- Pisot sequence L(7,9).at n=20A048589
- Coefficients of a polynomial used in calculation of A055913.at n=30A055916
- Numbers k such that k^256 + 1 is prime.at n=25A056995
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 99 ).at n=31A063372
- Expansion of (1-x-5*x^2)/(1-3*x-2*x^2-x^3).at n=8A070207
- Interprimes which are of the form s*prime, s=4.at n=34A075279
- Vertical of triangular spiral in A051682.at n=43A081271
- Sum of first n 7-almost primes.at n=14A086059
- Values of m such that binomial(m, a) + binomial(m, b) divides binomial(m, a + b) for some distinct nonnegative integers a and b with a + b <= m.at n=14A140601
- Values of m for which C(m,k)+C(m,k+1)=C(m+1,k+1) divides C(m,2k+1) for some nonnegative integer k with 2k+1 <= m.at n=9A140602
- Number of reduced words of length n in the Weyl group B_20.at n=4A161880
- Number of reduced words of length n in the Weyl group D_20.at n=4A162359
- Positions of zeros in A165582.at n=46A165583
- Some numbers of the form 2*x^3 + y^3 + z^3 found by a certain algorithm.at n=23A195006