Properties of the Number -2170

One Hundred Seventy

Basics

Value: -2171 → -2170 → -2169

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 7 × 31

Divisors: 1, 2, 5, 7, 10, 14, 31, 35, 62, 70

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -100001111010

Octal: -4172

Duodecimal: -130A

Hexadecimal: -87a

Square: 4708900

Square Root: 46.58325879540846

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) = coefficient of xⁿ*yⁿ in ∏_n>=1 (1 - (xⁿ + yⁿ)). A322213

Coefficients in the expansion of B⁷/C, in Watson's notation of page 118. A160534

Riordan array (1-4x, x(1-x)³). A119305

E.g.f.: cos(arctanh(x)*exp(x))=1-1/2!*x²-6/3!*x³-31/4!*x⁴-140/5!*x⁵... A12714

Coordination sequence for "ubt" 3D uniform tiling. A299291

a(n) = largest number of distinct words arising in Post's tag system {00, 1101} applied to a binary word w, over all starting words w of length n, or a(n) = -1 if there is a word w with an unbounded trajectory. A284116

a(n) = 2·n² + 8·n. A67728

Numbers k such that φ(k) = φ(k+2). A1494

Primitive pseudoperfect numbers. A6036

Coefficients of xⁿ in the n-th iteration of (x + x²) for n>=1. A112317