16480
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 24
- Divisor Sum
- 39312
- Proper Divisor Sum (Aliquot Sum)
- 22832
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 6528
- Möbius Function
- 0
- Radical
- 1030
- Omega Function (Ω)
- 7
- Little Omega Function (ω)
- 3
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
- 128
- Smith Number
- yes
- 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
- Coordination sequence for 4-dimensional I-centered cubic orthogonal lattice.at n=16A008532
- Number of partitions of 1/n into 4 reciprocals of positive integers.at n=28A020327
- 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 63.at n=37A031561
- Convolution of Fibonacci F(n+1), n>=0, with F(n+4), n>=0.at n=13A067332
- Numbers which are sums of two and also sums of three positive cubes.at n=29A085336
- Numbers which are sums of two, three and four cubes.at n=18A085337
- Numbers which are sums of two, three, four and also sums of five cubes.at n=17A085338
- a(n) = Sum_{d|n} A007955(d) * A007955(n/d), where A007955(m) = product of divisors of m.at n=19A174936
- Expansion of sqrt((2/Pi)*elliptic_E(k)) in powers of q.at n=13A193219
- Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w^2>x^2+y^2.at n=32A211810
- Number of ON cells after n generations in 4-D cellular automaton defined by 4-dimensional analog of Moore neighborhood, when started with a single ON cell at generation 0.at n=7A255477
- Number of ON cells after n generations in 4-D cellular automaton defined by 4-dimensional analog of Moore neighborhood, when started with a single ON cell at generation 0.at n=14A255477
- Number of ON cells after n generations in 4-D cellular automaton defined by 4-dimensional analog of Moore neighborhood, when started with a single ON cell at generation 0.at n=28A255477
- The subsequence A255477(2^n-1).at n=3A255478
- Value of the n-th Roman number interpreted as Latin alphabetic number.at n=13A285511
- Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.at n=3A305517
- Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.at n=3A305519
- T(n,k) = Number of n X k 0..1 arrays with every element unequal to 0, 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.at n=24A305523
- Coefficients of orthogonal polynomials p(n, x) where p(n, 0) is A026150 with 1 prepended. Triangle read by rows, T(n, k) for 0 <= k <= n.at n=56A322941
- Numbers m such that the average path sum is an integer when iterating from m to 1 with nondeterministic map k -> k - k/p, where p is any prime factor of k.at n=48A333785