Properties of the Number -138560

One Hundred Thirty-Eight Thousand Five Hundred Sixty

Basics

Value: -138561 → -138560 → -138559

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ⁶ × 5 × 433

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -100001110101000000

Octal: -416500

Duodecimal: -68228

Hexadecimal: -21d40

Square: 19198873600

Square Root: 372.23648397221893

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 nX1 0..2 arrays with exactly floor(nX1/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order. A222395

G.f. satisfies A(x) = ∑_n>=1 A(x^2·n)/A(xⁿ), with A(0) = 0 and A'(0) = 1. A378259

Number of nX2 0..2 arrays with exactly floor(nX2/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order. A222684