Properties of the Number 8670

Eight Thousand Six Hundred Seventy

Basics

Value: 8669 → 8670 → 8671

Parity: even

Prime: No

Previous Prime: 8669

Next Prime: 8677

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 17 ²

Divisors: 1, 2, 3, 5, 6, 10, 15, 17, 30, 34

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10000111011110

Octal: 20736

Duodecimal: 5026

Hexadecimal: 21de

Square: 75168900

Square Root: 93.11283477587824

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 k!! - 1 is prime. A7749

Let r, s, t be three permutations of the set {1,2,3,..,n}; a(n) = value of ∑_i=1..n r(i)*s(i)*t(i), with r={1,2,3,..,n}; s={n,n-1,..,1} and t={n,n-2,n-4,...,1,...,n-3,n-1}. A70893

Numbers k such that k and k+1 are both lazy-Pell-Niven numbers (A352342). A352343

Number of 2n-bead balanced binary strings of fundamental period 2n, rotationally equivalent to reverse, complement and reversed complement. A45665

a(n) = 30·n². A244636

a(n) is the area of the rectangle whose edges are n and A375673(n). A375675

Number of cubic equations ax³ + bx² + cx + d = 0 with integer coefficients |a|,|b|,|c|,|d| <= n, a <> 0, having three real roots, of which at least two are equal. A155192

a(n) = T(n, n+4), T given by A027052. A27055

a(n) = A027052(n, 2n-9). A27065

Expansion of (1+x+x²)/((1+x²)*(1+x)⁴*(1-x)⁵). A82290