Properties of the Number 51619

Fifty-One Thousand Six Hundred Nineteen

Basics

Value: 51618 → 51619 → 51620

Parity: odd

Prime: No

Previous Prime: 51613

Next Prime: 51631

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 41 × 1259

Divisors: 1, 41, 1259, 51619

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100110100011

Octal: 144643

Duodecimal: 25A57

Hexadecimal: c9a3

Square: 2664521161

Square Root: 227.1981514009302

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 asymmetric mobiles (circular rooted trees) with n nodes and 3 leaves. A55364

Numerator of ∑_k=1..n k⁴ / ∏_k=1..n k⁴. A181426

Triangle read by rows: T(n,k) = number of ways, summed over the free n-ominoes, that an n-omino with an assigned orientation can be maximally (partially) covered by k X 1 tiles. A308437

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 371", based on the 5-celled von Neumann neighborhood. A271456

a(n) = (4·n+7)(!⁴)/7(!⁴), related to A034176(n+1) ((4·n+3)(!⁴) quartic, or 4-factorials). A51619