Properties of the Number -28124

Twenty-Eight Thousand One Hundred Twenty-Four

Basics

Value: -28125 → -28124 → -28123

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 79 × 89

Divisors: 1, 2, 4, 79, 89, 158, 178, 316, 356, 7031

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110110111011100

Octal: -66734

Duodecimal: -14338

Hexadecimal: -6ddc

Square: 790959376

Square Root: 167.70211686201222

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

Numbers k such that σ(k+2) = σ(k). A7373

a(n) = ∑_{1 <= x₁, x₂ <= n} gcd(x₁, x₂, n)⁴. A372926

Numerators of continued fraction convergents to sqrt(341). A41644

Sequence shifts left ten places under Weigh transform with a(n) = signum(n) for n<10. A316082

a(n) = 4*(5·n² - 5·n + 1). A193448

a(n) = 9·5ⁿ-1. A198768

Numbers k such that k⁴ == 1 (mod 5⁵). A56102