Properties of the Number -280930

Two Hundred Eighty Thousand Nine Hundred Thirty

Basics

Value: -280931 → -280930 → -280929

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 5 × 13 × 2161

Divisors: 1, 2, 5, 10, 13, 26, 65, 130, 2161, 4322

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000100100101100010

Octal: -1044542

Duodecimal: -1166AA

Hexadecimal: -44962

Square: 78921664900

Square Root: 530.0283011311755

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) = 6·binomial(n,4) + 5·binomial(n,2) - 4·n + 5. A66455

a(n) = ∑_k=0..n 3^k-1*Fibonacci(k). A99013

Triangle read by rows: coefficient of xⁿ in the power series of x/(1 - m·x - x² + x³ - x⁵) in row n, column m=1..n+2. A117744