Properties of the Number 31326

Thirty-One Thousand Three Hundred Twenty-Six

Basics

Value: 31325 → 31326 → 31327

Parity: even

Prime: No

Previous Prime: 31321

Next Prime: 31327

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 23 × 227

Divisors: 1, 2, 3, 6, 23, 46, 69, 138, 227, 454

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111101001011110

Octal: 75136

Duodecimal: 16166

Hexadecimal: 7a5e

Square: 981318276

Square Root: 176.99152522084214

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..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 2,0,1,0,1 for x=0,1,2,3,4. A197679

Number of partitions p of n such that (number of numbers of the form 5k + 3 in p) is a part of p. A241552

Number of binary words of length n such that there is at least one 0 and every run of consecutive 0's is of length >= 4. A209231

Number of nonequivalent ways (mod D₃) to place 3 points on an n X n X n triangular grid so that no two of them are on the same row, column or diagonal. A283114

Number of partitions of n such that the set of parts has an even number of elements. A92306

Number of paraffins. A5999

Number of nX3 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,1 for x=0,1,2,3,4. A197674

Number of 0..n arrays of length 7 with each element differing from at least one neighbor by 1 or less, starting with 0. A221686

Number of strict 3rd-order maximal independent sets in path graph. A7384

G.f. satisfies: A(x) = ∑_n>=0 xⁿ*[∑_k=0..n C(n,k)² *x^k* A(x)^2k]. A183876