Properties of the Number -216481

Two Hundred Sixteen Thousand Four Hundred Eighty-One

Basics

Value: -216482 → -216481 → -216480

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 216481

Divisors: 1, 216481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110100110110100001

Octal: -646641

Duodecimal: -A5341

Hexadecimal: -34da1

Square: 46864023361

Square Root: 465.2751873891407

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

Prime(p²) where p = prime(n). A96327

a(n) = 128n² + 2336n + 10657. A157433

Primes in A354975. A355009

Prime k with σ(σ(σ(k))) < 3·k + 1. A320517

G.f.: ( x - 3·x² + 6·x³ - 8·x⁴ + 4·x⁵ - x⁷ ) / (1 - 4·x + 6·x² - 5·x³ + 2·x⁴ + x⁵ - x⁶ + x⁷ ). A83839