Properties of the Number 56105

Fifty-Six Thousand One Hundred Five

Basics

Value: 56104 → 56105 → 56106

Parity: odd

Prime: No

Previous Prime: 56101

Next Prime: 56113

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 7 ² × 229

Divisors: 1, 5, 7, 35, 49, 229, 245, 1145, 1603, 8015

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101101100101001

Octal: 155451

Duodecimal: 28575

Hexadecimal: db29

Square: 3147771025

Square Root: 236.86494041964082

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

Consider a decimal number of k>=2 digits z = d_k*10^k-1 + d_k-1*10^k-2 + ... + d₂*10 + d₁ and the sum y = ∑_x=2..k {∑_j=1..k-x{d_j+x-1*10^j-1} - ∑_j=1..x-1{d_j*10^j-1}}. Sequence lists the numbers for which y = τ(z), where τ(z) is the number of divisors of z. A248904

First spoke of a hexagonal spiral. A56105

Decimal expansion of 1/12. A21016

Minimum number of colors needed to color the faces of the Platonic solids such that no two faces meeting at a common edge share the same color (in the order tetrahedron, cube, octahedron, dodecahedron, icosahedron). A244951