16359
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 24
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 26880
- Proper Divisor Sum (Aliquot Sum)
- 10521
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 8640
- Möbius Function
- 1
- Radical
- 16359
- 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
- 159
- 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
- no
- Odd
- yes
Appears in sequences
- Numerator of n*(n-2)*(2*n-1)/(2*(n-1)).at n=19A022997
- OR-convolution of squares A000290 with themselves.at n=28A033459
- Non-palindromic number and its reversal are both multiples of 19.at n=33A062916
- C referred to in A056600.at n=3A069718
- Inverse Moebius transform of 5-simplex numbers A000389.at n=15A101289
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 0), (0, 1, 0), (1, -1, -1), (1, -1, 1)}.at n=10A148247
- Monotonic ordering of nonnegative differences 2^i-5^j, for 40>=i>=0, j>=0.at n=48A192114
- Monotonic ordering of nonnegative differences 4^i-5^j, for 40>= i>=0, j>=0.at n=26A192161
- Number of n-bead necklaces labeled with numbers 1..3 not allowing reversal, with no adjacent beads differing by more than 1.at n=13A208772
- Products p*q*r*s of distinct primes for which (p*q*r*s - 1)/2 is prime.at n=32A234498
- Number of length-(3+1) 0..n arrays with new repeated values introduced in sequential order starting with zero.at n=10A268262
- Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 459", based on the 5-celled von Neumann neighborhood.at n=13A288403
- a(n) = 27*n^2/2 + 45*n/2 - 12 (n>=1).at n=33A304375
- a(n) = n*(n + 1)*(16*n - 1)/6.at n=18A304659
- Apply Lenormand's transformation k -> A318921(k) to the Fibonacci numbers.at n=55A318922
- Odd composite integers m such that A006497(2*m-J(m,13)) == 3*J(m,13) (mod m), where J(m,13) is the Jacobi symbol.at n=42A339518
- Number of nonnegative solutions to (x_1)^2 + (x_2)^2 + ... + (x_6)^2 <= n.at n=44A341401
- Expansion of (1/x) * Series_Reversion( x * ((1-x^2)^3 - x) ).at n=7A392977