Properties of the Number -213688

Two Hundred Thirteen Thousand Six Hundred Eighty-Eight

Basics

Value: -213689 → -213688 → -213687

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 26711

Divisors: 1, 2, 4, 8, 26711, 53422, 106844, 213688

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110100001010111000

Octal: -641270

Duodecimal: -A37B4

Hexadecimal: -342b8

Square: 45662561344

Square Root: 462.2639938390184

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

Expansion of 1/sqrt((1 - x⁴ - x⁵)² - 4·x⁹). A376722

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f. B(x)^k, where B(x) is the e.g.f. of A384810. A384813