Properties of the Number 54216

Fifty-Four Thousand Two Hundred Sixteen

Basics

Value: 54215 → 54216 → 54217

Parity: even

Prime: No

Previous Prime: 54193

Next Prime: 54217

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ³ × 251

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101001111001000

Octal: 151710

Duodecimal: 27460

Hexadecimal: d3c8

Square: 2939374656

Square Root: 232.84329494318706

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

Number of unlabeled rooted trees with n nodes where the branches of no branch of the root form a submultiset of the branches of the root. A324838

Number of equilateral triangles with coordinates (x,y,z) in the set {0, 1,...,n}. A102698

Triangle T(n,k) read by rows; given by [0,1,0,1,0,1,0,1,...] δ [1,1,1,2,1,3,1,4,1,5,1,6,...], where δ is Deléham's operator defined in A084938. A85838

Number of walks on cubic lattice starting at (1,1,1), ending at (n,n,n), remaining in the first (nonnegative) octant and using steps (0,-1,2), (0,2,-1), (-1,0,2), (2,0,-1), (-1,2,0), and (2,-1,0). A277262

p-INVERT of (1,1,1,1,1,...), where p(S) = (1 - 2 S²)². A291024

a(n) = ∑_k=0..n 2^k * 3^n-k * binomial(2·n+1,k) * binomial(2·n-k,n-k). A385669

Nonprime numbers k such that k | sigma₃(k) + φ(k)³. A55970

Number of n-step closed paths on the E6 lattice. A292881

McKay-Thompson series of class 26A for Monster. A58596

Numbers n such that 117·2ⁿ-1 is prime. A50584