Properties of the Number 30966

Thirty Thousand Nine Hundred Sixty-Six

Basics

Value: 30965 → 30966 → 30967

Parity: even

Prime: No

Previous Prime: 30949

Next Prime: 30971

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 13 × 397

Divisors: 1, 2, 3, 6, 13, 26, 39, 78, 397, 794

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100011110110

Octal: 74366

Duodecimal: 15B06

Hexadecimal: 78f6

Square: 958893156

Square Root: 175.9715886158899

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

Matula-Goebel numbers of transitive rooted identity trees (or transitive finitary sets). A290760

Number of triangular regions in regular n-gon with all diagonals drawn. A62361

Number of regions in regular n-gon which are quadrilaterals (4-gons) when all its diagonals are drawn. A67151

a(1) = 1; a(n) = a(n-1)*prime(a(n-1)). A76146

Largest number of maximum matchings in a tree of n vertices. A333347

Expansion of ∏_k>=1 1/(1 + x^k)^σ(k). A288421

Matula-Goebel numbers of unlabeled rooted identity RPMG-trees, meaning the Matula-Goebel numbers of the branches of any non-leaf node are relatively prime. A316469

a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero icosahedral numbers in exactly n ways, or -1 if no such integer exists. A360215

Numbers k such that the decimal part of k^1/10 starts with a 'nine digits' anagram. A34285

Where n first appears in A093320. A94162