6046
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 9072
- Proper Divisor Sum (Aliquot Sum)
- 3026
- 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
- 3022
- Möbius Function
- 1
- Radical
- 6046
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 93
- 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
- Number of directed animals of size n (or directed n-ominoes in standard position).at n=10A005773
- Coordination sequence for FeS2-Pyrite, S position.at n=36A009956
- Numbers k such that the continued fraction for sqrt(k) has period 96.at n=10A020435
- a(n) = least m such that if r and s in {1/1, 1/2, 1/3, ..., 1/n} satisfy r < s, then r < k/m < (k+3)/m < s for some integer k.at n=40A024843
- Numbers having period-4 6-digitized sequences.at n=33A031197
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 76.at n=17A031574
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 38 ones.at n=27A031806
- Triangular array that counts rooted polyominoes.at n=45A038622
- a(n) = Sum_{k=1..n} T(n,k), array T as in A049790.at n=25A049791
- Numbers k such that 265*2^k + 1 is prime.at n=16A053349
- a(n) = 4*n^2 - 9*n + 6.at n=39A054556
- Square array read by antidiagonals: number of ways a pawn-like piece (with the initial 2-step move forbidden and starting from any square on the back rank) can end at various squares on an infinite chessboard.at n=54A062105
- Numbers k such that A001414(k) is a square and sets a new record for squares.at n=20A064463
- Bessel polynomial y_n(-3).at n=4A065923
- Consecutive terms of A065966 which are also consecutive integers.at n=19A065976
- Centered 13-gonal numbers.at n=30A069126
- Where records in A070172 occur.at n=52A085443
- Triangle, read by rows, of pairwise sums of trinomial coefficients (A027907).at n=49A104029
- Semiprimes in A054556.at n=12A113693
- Self-describing sequence. See the sequence as a succession of digits: then a(n) is the position of a prime digit in the sequence.at n=48A114315