Properties of the Number -71480

Seventy-One Thousand Four Hundred Eighty

Basics

Value: -71481 → -71480 → -71479

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 × 1787

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 1787, 3574

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001011100111000

Octal: -213470

Duodecimal: -35448

Hexadecimal: -11738

Square: 5109390400

Square Root: 267.35743864721627

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

Number of ways to place 4 nonattacking knights on a 4 X n board. A172213

Number of positive solutions to (x₁)² + (x₂)² + ... + (x₇)² <= n². A341426

a(n) = a(n-2)+a(n-4); a(1)=a(4)=101, a(2)=a(3)=10. A180236