Properties of the Number -271445

Two Hundred Seventy-One Thousand Four Hundred Forty-Five

Basics

Value: -271446 → -271445 → -271444

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 233 ²

Divisors: 1, 5, 233, 1165, 54289, 271445

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000010010001010101

Octal: -1022125

Duodecimal: -111105

Hexadecimal: -42455

Square: 73682388025

Square Root: 521.003838757451

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

a(n) = a(n-1) + a(n-2) - 2, a(0) = 4, a(1) = 3. A211

a(n) = Fibonacci(2·n+1) + Fibonacci(2·n-1) + 2. A92387

a(n) = Lucas(n) + (-1)ⁿ + 1. A68397

a(n) = Lucas(4n+2)+2, or 5·Fibonacci(2n+1)². A81067

Expansion of (1 - x + 3·x³ - 2·x⁴ - 3·x⁵)/(1 - 2·x + x³). A48162

a(n) = 5·Fibonacci(n)². A99921

Duplicate of A092387. A240926

Duplicate of A068397. A102081

Let L(n) = Fibonacci(n-1)+Fibonacci(n+1) (cf. A000045, A000032); if n is even then a(n) = (L(n)+2)² otherwise a(n) = L(2·n)+2. A233000