Properties of the Number -20174

Twenty Thousand One Hundred Seventy-Four

Basics

Value: -20175 → -20174 → -20173

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 7 × 11 × 131

Divisors: 1, 2, 7, 11, 14, 22, 77, 131, 154, 262

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -100111011001110

Octal: -47316

Duodecimal: -B812

Hexadecimal: -4ece

Square: 406990276

Square Root: 142.03520690307738

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

Number of points on surface of hexagonal prism: 12·n² + 2 for n > 0 (coordination sequence for W(2)). A5914

Final members of groups in A076105. A76102

a(n) = 1331·n - 1122. A157441

Number of ways to tile hexagon of edge n with diamonds of side 1, not counting rotations and reflections as different. A66931

Number of n-digit 7th powers. A216657

Coordination sequence for MgNi2, Position Ni1. A9933

Numbers k such that (k / sum of digits of k) and (k+1 / sum of digits of k+1) are both semiprime. A85774

Number of binary strings of length n with equal numbers of 00100 and 10001 substrings. A164240

a(n) = ∑_k=1..n k·lcm(k,k')/gcd(k,k'), where k' is arithmetic derivative of k. A190122

Least k such that A006577(k) = A006577(n) + A006577(n+1). A277962