Properties of the Number 57280

Fifty-Seven Thousand Two Hundred Eighty

Basics

Value: 57279 → 57280 → 57281

Parity: even

Prime: No

Previous Prime: 57271

Next Prime: 57283

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁶ × 5 × 179

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

2196 Try Today's Challenge

Representations

Binary: 1101111111000000

Octal: 157700

Duodecimal: 29194

Hexadecimal: dfc0

Square: 3280998400

Square Root: 239.33240482642546

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 sets (in the Hausdorff metric geometry) at each location between two sets defining a polygonal configuration consisting of two 4-gonal polygonal components chained with string components of length l as l varies. A152929

Diagonal sums of triangle A099573. A99574

Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 54", based on the 5-celled von Neumann neighborhood. A278600

Integers m that satisfy τ(m) + ω(m) = #({φ(x) = m}). A305656

Molecular topological indices of the web graphs. A192850

a(n) = ((2ⁿ*n + i*(1 - i)ⁿ - i*(1 + i)ⁿ))/4, where i is the imaginary unit. A323225

Number of partitions of [n] having exactly one block size whose multiplicity equals its size. A392503

a(n) = 2·a(n-1) + 16·a(n-2) + 16·a(n-3) for n>3 with a(1)=1, a(2)=14, a(3)=60. A140184

a(1) = 1, and then 4*(2·n + 1)²*a(n+1) + n²*a(n) = (205·n² + 160·n + 32)*binomial(2·n-1, n)³ (n = 1, 2, 3, ...). A176285

Coefficient triangle of polynomials (rising powers) related to Fibonacci convolutions. Companion triangle to A057995. A57280