Properties of the Number 8871

Eight Thousand Eight Hundred Seventy-One

Basics

Value: 8870 → 8871 → 8872

Parity: odd

Prime: No

Previous Prime: 8867

Next Prime: 8887

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 2957

Divisors: 1, 3, 2957, 8871

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10001010100111

Octal: 21247

Duodecimal: 5173

Hexadecimal: 22a7

Square: 78694641

Square Root: 94.18598621875762

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 (n+1)X(k+1) 0..2 arrays with the minimum plus the upper median equal to the lower median plus the maximum in every 2X2 subblock. A235884

Table read by rows: T(n,k) = number of 2-connected planar graphs with n >= 1 nodes and 0 <= k <= 3n-6 edges. A49336

Numbers k such that k*(k+6) gives the concatenation of two numbers m and m-7. A116242

G.f. A(x) satisfies: ∑_n>=0 ( 1/A(x) - (1-x)^4·n )ⁿ = 1. A317668

Numbers that define integer Heronian triangles [prime(a(n)), prime(a(n)+1), A068965(n)] with area A068966(n). A68964

Least positive integer coefficients of power series A(x) such that the coefficients of A(x)² + A(x) - 1 consist entirely of squares. A83352

The maximum possible number of rooted triples consistent with any galled-tree (level-1 phylogenetic network) containing exactly n leaves. A216499

Number of fixed hexagonal polyominoes with n cells that have a horizontal axis of symmetry that connects the midpoints of opposite edges of one of the n cells. A347257

Numbers n such that 2·prime(n) - prime(n+1) is a square. A110975

Numbers k such that A084937(3k) > A084937(3k+1). A249689