Properties of the Number -275807

Two Hundred Seventy-Five Thousand Eight Hundred Seven

Basics

Value: -275808 → -275807 → -275806

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 7 × 31 ² × 41

Divisors: 1, 7, 31, 41, 217, 287, 961, 1271, 6727, 8897

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -1000011010101011111

Octal: -1032537

Duodecimal: -11373B

Hexadecimal: -4355f

Square: 76069501249

Square Root: 525.17330472902

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) = -2·a(n-1) + a(n-2) for n>1, a(0)=1, a(1)=-1. A123335

List of triples (r,s,t): the matrix M = [[1,4,4][1,3,2][1,2,1]] is raised to successive negative powers, then (r,s,t) are the square roots of M[3,1], M[1,1], M[1,3] respectively. A249577

Main diagonal of triangle A098495. A98497

Pell-Lucas numbers: numerators of continued fraction convergents to sqrt(2). A1333

NSW numbers: a(n) = 6·a(n-1) - a(n-2); also a(n)² - 2·b(n)² = -1 with b(n) = A001653(n+1). A2315

Expansion of (1+x)/(1-2·x-x²). A78057

Interleave denominators (A000129) and numerators (A001333) of convergents to sqrt(2). A2965

a(1) = 1, a(2) = 2; a(2·k) = 2·a(2·k-1) - a(2·k-2), a(2·k+1) = 4·a(2·k) - a(2·k-1). A84068

A005319 and A002315 interleaved. A143608

Expansion of (1+2·x-2·x³-3·x²)/((x-1)*(x+1)*(x²+2·x-1)). A100828