Properties of the Number -218348

Two Hundred Eighteen Thousand Three Hundred Forty-Eight

Basics

Value: -218349 → -218348 → -218347

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 13 ² × 17 × 19

Divisors: 1, 2, 4, 13, 17, 19, 26, 34, 38, 52

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110101010011101100

Octal: -652354

Duodecimal: -A6438

Hexadecimal: -354ec

Square: 47675849104

Square Root: 467.27721964589716

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

Robbins numbers: a(n) = ∏_k=0..n-1 (3k+1)!/(n+k)!; also the number of descending plane partitions whose parts do not exceed n; also the number of n X n alternating sign matrices (ASM's). A5130

Robbins triangle read by rows: T(n,k) = number of alternating sign n X n matrices with a 1 at top of column k (n >= 1, 1<=k<=n). A48601

Triangle read by rows: a(n,k) is the number of k X n matrices which are the first k rows of an alternating sign matrix of size n. A297622

Array of higher spin alternating sign matrices, read by antidiagonals. A143670