Properties of the Number 31229

Thirty-One Thousand Two Hundred Twenty-Nine

Basics

Value: 31228 → 31229 → 31230

Parity: odd

Prime: No

Previous Prime: 31223

Next Prime: 31231

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 11 × 17 × 167

Divisors: 1, 11, 17, 167, 187, 1837, 2839, 31229

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100111111101

Octal: 74775

Duodecimal: 160A5

Hexadecimal: 79fd

Square: 975250441

Square Root: 176.71728834497208

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) = n * (6·n² + 6·n + 1). A94421

an=n-th smallest integer m=p1·p2·p3, product of 3 odd primes such that d+2m/d are all primes for d dividing 2m. A128278

Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and w+2x+3y>1. A211622

Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero. A298316

Number of minimal total dominating sets in the n-pan graph. A303148

T(n,k) = Number of n X k 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero. A298320

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero. A299393

Length of n-th run of digit 3 in A031219. A31229