Properties of the Number -206701

Two Hundred Six Thousand Seven Hundred One

Basics

Value: -206702 → -206701 → -206700

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 11 × 19 × 23 × 43

Divisors: 1, 11, 19, 23, 43, 209, 253, 437, 473, 817

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -110010011101101101

Octal: -623555

Duodecimal: -9B751

Hexadecimal: -3276d

Square: 42725303401

Square Root: 454.6438166301176

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) = 5·a(n-1) - 5·a(n-2) + a(n-3) with a(1) = 1 and a(k) = 0 if k <= 0. A61278

a(n) = A011916(n) + A011922(n) - 1. A11918

a(n) = ∑_{k=0..floor(n/2)} 2^n-2·k * binomial(2·n-2·k,2·k). A387689

a(1) = least k such that 1/2+1/3+1/4+1/5 < H(k) - H(5); a(2) = least k such that H(a(1)) - H(5) < H(k) -H(a(1)), and for n > 2, a(n) = least k such that H(a(n-1)) - H(a(n-2)) > H(k) - H(a(n-1)), where H = harmonic number. A228025