Properties of the Number 80143

Eighty Thousand One Hundred Forty-Three

Basics

Value: 80142 → 80143 → 80144

Parity: odd

Prime: No

Previous Prime: 80141

Next Prime: 80147

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 107 ²

Divisors: 1, 7, 107, 749, 11449, 80143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011100100001111

Octal: 234417

Duodecimal: 3A467

Hexadecimal: 1390f

Square: 6422900449

Square Root: 283.0953902839112

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) = ψ(k) + τ(k) + ω(k). A386637

a(n) = ∑_{1 <= x₁, x₂, x₃ <= n} gcd(x₁, x₂, x₃, n)⁴. A372929

a(n) = F(3)*F(n)*F(n+1) + F(4)*F(n+1)² - F(4) if n even, F(3)*F(n)*F(n+1) + F(4)*F(n+1)² if n odd, where F(n) is the n-th Fibonacci number (A000045). A80143