Properties of the Number 55118

Fifty-Five Thousand One Hundred Eighteen

Basics

Value: 55117 → 55118 → 55119

Parity: even

Prime: No

Previous Prime: 55117

Next Prime: 55127

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 7 × 31 × 127

Divisors: 1, 2, 7, 14, 31, 62, 127, 217, 254, 434

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101011101001110

Octal: 153516

Duodecimal: 27A92

Hexadecimal: d74e

Square: 3037993924

Square Root: 234.77223004435598

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 ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and w+5x+5y>0. A211627

Even integers k such that φ(sum of even divisors of k) = sum of odd divisors of k. A281707

Numbers k such that k = x + y, sigma₁(k) = sigma₁(x) + sigma₁(y) and sigma₂(k) = sigma₂(x) + sigma₂(y). A219033

Number of negative formulas with two connectives (-> and *) and no variables. A233130

Base-8 complement of n (write n in base 8, then replace each digit with its base-8 negative). A55118

G.f. A(x) satisfies 1 - x = ∑_n=-oo..+oo (x^2·n - A(x))ⁿ. A377249