Properties of the Number 31422

Thirty-One Thousand Four Hundred Twenty-Two

Basics

Value: 31421 → 31422 → 31423

Parity: even

Prime: No

Previous Prime: 31397

Next Prime: 31469

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5237

Divisors: 1, 2, 3, 6, 5237, 10474, 15711, 31422

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101010111110

Octal: 75276

Duodecimal: 16226

Hexadecimal: 7abe

Square: 987342084

Square Root: 177.26251718849082

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

a(n) = a(n-1) + a(n-4) with a(0) = 0, a(1) = a(2) = a(3) = 1. A3269

Expansion of (1-x)/(1-x-x⁴). A17898

Expansion of (1-x)*(1+x)/(1-x-2·x²+x⁴). A52535

G.f. A(x) satisfies: A(x²*B(x)) = x³ - x⁴, where A(B(x)) = x. A273203

a(n) is its own 4th difference. A55990

Number of integer partitions of n with a repeated part other than the least. A375405

Number of one-sided polyaboloes (or polytans) with n cells, where two triangles sharing a hypotenuse (making up a square) are counted as a single cell. A390997

Expansion of -x - x³*(2 -2·x⁴ +x⁵)/((1-x²)*(1+x+x⁴)). A89076

Sum C(n-3k,k-1), k=0..floor(n/4). A99561

Number of n X 4 0..1 arrays with rows, columns and antidiagonals unimodal and diagonals nondecreasing. A223766