Properties of the Number -283881

Two Hundred Eighty-Three Thousand Eight Hundred Eighty-One

Basics

Value: -283882 → -283881 → -283880

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 13 × 29 × 251

Divisors: 1, 3, 13, 29, 39, 87, 251, 377, 753, 1131

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -1000101010011101001

Octal: -1052351

Duodecimal: -118349

Hexadecimal: -454e9

Square: 80588422161

Square Root: 532.8048423203378

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) = Fibonacci(n)*(2·Fibonacci(n)-1). A95122

Numbers k such that 149·2^k+1 is prime. A32424

a(n)=2·Product[(1 + 4·Cos[k*π/n]²)*(1 + 4·Sin[k*π/n]²), {k, 1, Floor[(n - 1)/2]}] - Product[(1 + 4·Sin[k*π/n]²), {k, 1, Floor[(n - 1)/2]}]. A152190