8814
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 19152
- Proper Divisor Sum (Aliquot Sum)
- 10338
- 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
- 2688
- Möbius Function
- 1
- Radical
- 8814
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
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
- 52
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- Number of multigraphs with 4 nodes and n edges.at n=27A003082
- Alkane (or paraffin) numbers l(7,n).at n=23A005994
- Coordination sequence for Cr3Si, Si position.at n=24A009927
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite EUO = EU-1 Nan[AlnSi112-nO224] starting with a T9 atom.at n=12A019128
- Denominators of continued fraction convergents to sqrt(680).at n=3A042307
- Number of 3 X 3 integer matrices with elements in the range [ -n,n ] which represent a four-fold rotation. Also the sequence for the corresponding four-fold rotoinversions.at n=2A053173
- Triangle read by rows: T(n,k) is the number of permutations of [n] with k alternating runs (n>=2, k>=1).at n=30A059427
- Number of permutations of [n] with 3 sequences.at n=6A060157
- Geometric mean of the digits = 4. In other words, the product of the digits is = 4^k where k is the number of digits.at n=42A061428
- a(n) = 2*n*(2*n^2 + 1).at n=13A061804
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 95 ).at n=27A063368
- a(n) = n*(n-1)*(2*n^2 + 1)/6.at n=13A071245
- Numbers k such that phi(k) divides sigma(k+1) - sigma(k).at n=34A072611
- Row sums of triangle A074135.at n=25A074132
- Sum of terms in each group in A074147.at n=25A074149
- Sums of terms of groups in A075621.at n=25A075625
- Sums of members of groups in A076063.at n=25A076066
- Number of polyominoes consisting of 6 regular unit n-gons.at n=14A103472
- Numbers k such that k + sigma(k) is a triangular number.at n=39A115904
- Numbers n such that n^2 contains no digit less than 5.at n=37A175471