Properties of the Number -138026

One Hundred Thirty-Eight Thousand Twenty-Six

Basics

Value: -138027 → -138026 → -138025

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 7 × 9859

Divisors: 1, 2, 7, 14, 9859, 19718, 69013, 138026

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -100001101100101010

Octal: -415452

Duodecimal: -67A62

Hexadecimal: -21b2a

Square: 19051176676

Square Root: 371.5185055956163

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

T(n,k)=Number of nXk 0..2 arrays with exactly floor(nXk/2) elements equal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order. A222889

Number of Motzkin meanders of length n with no level steps at odd level. A307557

Number of nX3 0..2 arrays with exactly floor(nX3/2) elements equal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order. A222886

Number of nX5 0..2 arrays with exactly floor(nX5/2) elements equal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order. A222888

Numbers that can be written in exactly two different ways in the form described by A387302. A387898