Properties of the Number 28713

Twenty-Eight Thousand Seven Hundred Thirteen

Basics

Value: 28712 → 28713 → 28714

Parity: odd

Prime: No

Previous Prime: 28711

Next Prime: 28723

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 563

Divisors: 1, 3, 17, 51, 563, 1689, 9571, 28713

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111000000101001

Octal: 70051

Duodecimal: 14749

Hexadecimal: 7029

Square: 824436369

Square Root: 169.44910740396364

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

Numbers k such that x^k + x + 1 is irreducible over GF(2). A2475

a(n) is the largest integer k such that there is an integer m with exactly n nonunitary prime factors and m + A005117(i) is squarefree for 1 <= i <= k. A390138

Constant term of the reduction by x²->x+1 of the polynomial p(n,x)=1+xⁿ+x²ⁿ⁺². A192472

a(n) = 3ⁿ - A006952(n). A304082

Powers of rooted tree enumerator. A529

Sum of diagonal elements and those below it for a square matrix of integers, starting with 1. A66804

Numerators of f(n) with 2·f(n+1) = f(n) + A198631(n)/A006519(n+1), f(0)=0. A240980

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, 0), (0, 1, 1), (1, 0, -1), (1, 0, 0)}. A150256

Expansion of (theta₃(z)*theta₃(5z)*theta₃(25z)+theta₂(z)*theta₂(5z)*theta₂(25z))⁴. A28713