Properties of the Number -155819

One Hundred Fifty-Five Thousand Eight Hundred Nineteen

Basics

Value: -155820 → -155819 → -155818

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 19 × 59 × 139

Divisors: 1, 19, 59, 139, 1121, 2641, 8201, 155819

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110000010101011

Octal: -460253

Duodecimal: -7620B

Hexadecimal: -260ab

Square: 24279560761

Square Root: 394.73915437919254

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

Lucas-Carmichael numbers: squarefree composite numbers k such that p | k => p+1 | k+1. A6972

Lucas-Carmichael numbers with 3 prime factors. A216925

Strong Lucas pseudoprimes. A217255

Extra strong Lucas pseudoprimes. A217719

Composite numbers k such that Pell(k) == -1 (mod k). A319043

Number of nonnegative solutions to (x₁)² + (x₂)² + ... + (x₉)² <= n. A341404