Properties of the Number 8870

Eight Thousand Eight Hundred Seventy

Basics

Value: 8869 → 8870 → 8871

Parity: even

Prime: No

Previous Prime: 8867

Next Prime: 8887

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 5 × 887

Divisors: 1, 2, 5, 10, 887, 1774, 4435, 8870

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010100110

Octal: 21246

Duodecimal: 5172

Hexadecimal: 22a6

Square: 78676900

Square Root: 94.18067742376883

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 n such that 7ⁿ - 8 is prime. A217131

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2. A251210

Number of isomorphism classes of nanocones with 3 pentagons and a symmetric boundary of length n. A197988

The number of P-positions in the game of Nim with up to four piles, allowing for piles of zero, such that the total number of objects in all piles doesn't exceed 2n. A237686

a(n) = ∑_i=0..n digsum₉(i)⁴, where digsum₉(i) = A053830(i). A231687

a(n) is the number of edges formed by n-secting the angles of a pentagon. A335555

Number of partitions of n into odious numbers (A000069). A67590

Antidiagonal sums of square table A089447, which lists the coefficients of xⁿ*y^k in f(x,y) that satisfies: f(x,y) = g(x,y) + xy·f(x,y)⁴ and where g(x,y) satisfies: 1 + (x+y-1)*g(x,y) + xy·g(x,y)² = 0. A89449

Negative integers n such that in balanced ternary representation the number of occurrences of each trit doubles when n is squared. A257868

a(n) is the number of binary (0,1) sequences of length n that have at most two zeros in a window of seven consecutive symbols. A334251