Properties of the Number 30236

Thirty Thousand Two Hundred Thirty-Six

Basics

Value: 30235 → 30236 → 30237

Parity: even

Prime: No

Previous Prime: 30223

Next Prime: 30241

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 7559

Divisors: 1, 2, 4, 7559, 15118, 30236

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111011000011100

Octal: 73034

Duodecimal: 155B8

Hexadecimal: 761c

Square: 914215696

Square Root: 173.88501948126526

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

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A301361

Related to enumeration of edge-rooted catafusenes. A39660

Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A301358

Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A301360

Number of ways to place zero or more nonadjacent 1,1 2,0 2,1 3,1 3,2 3,3 4,1 4,3 polyhexes in any orientation on a planar nXnXn triangular grid. A155371

Cycle-path coverings of a family of digraphs. A30236

Numbers k such that φ(k)/4 is a prime, where φ is the Euler totient function. A180642

Numbers n such that 5+φ(n)² is prime. φ(n) is Euler's totient. A180645