Properties of the Number 16404

Sixteen Thousand Four Hundred Four

Basics

Value: 16403 → 16404 → 16405

Parity: even

Prime: No

Previous Prime: 16381

Next Prime: 16411

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 1367

Divisors: 1, 2, 3, 4, 6, 12, 1367, 2734, 4101, 5468

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000000010100

Octal: 40024

Duodecimal: 95B0

Hexadecimal: 4014

Square: 269091216

Square Root: 128.07810117268292

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers n such that m + (sum of digits in base-4 representation of m) = n has exactly three solutions. A230635

Sums of 3 distinct powers of 4. A38471

Number of tatami tilings of a 3 X n grid (with monomers allowed). A180970

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 115", based on the 5-celled von Neumann neighborhood. A278917

Triangle read by rows: T(n,k) is the number of non-crossing connected graphs on n nodes on a circle in which the root (a distinguished node) has degree k (n >= 2, 1 <= k <= n-1). A143022

Numerator of Hermite(n, 9/17). A159537

Expansion of (1-4x²)/(1+4x+3x²). A128416

Inversion sets of finite permutations that have only 0's and 1's in their inversion vectors. A211364

A106486-encodings of combinatorial games with value 2. A125995

Number of strings of numbers x(i=1..5) in 0..n with sum i·x(i)² equal to n·25. A184444