Properties of the Number 55518

Fifty-Five Thousand Five Hundred Eighteen

Basics

Value: 55517 → 55518 → 55519

Parity: even

Prime: No

Previous Prime: 55511

Next Prime: 55529

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 19 × 487

Divisors: 1, 2, 3, 6, 19, 38, 57, 114, 487, 974

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101100011011110

Octal: 154336

Duodecimal: 28166

Hexadecimal: d8de

Square: 3082248324

Square Root: 235.62257956316495

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

Indices of centered octagonal numbers (A016754) which are also heptagonal numbers (A000566). A253920

Wiener index of graph of b.c.c. unit cells in a line = Sum of distances in a b.c.c. row graph. A273321

Numbers k such that all primes dividing the k-th composite number divide k as well. A368309

a_k+1 = 6·a_k + 11·a_k-1 - 19·a_k-2 - 4·a_k-3 + a_k-4, a₁=1, a₂=2, a₃=19, a₄=118, a₅=875. A55518