Properties of the Number 8560

Eight Thousand Five Hundred Sixty

Basics

Value: 8559 → 8560 → 8561

Parity: even

Prime: No

Previous Prime: 8543

Next Prime: 8563

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁴ × 5 × 107

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10000101110000

Octal: 20560

Duodecimal: 4B54

Hexadecimal: 2170

Square: 73273600

Square Root: 92.52026804976302

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) = ∑_{k=1..n, gcd(n,k) = 1} k². A53818

a(n) = ∑_k=0..2n-3 T(n,k) * T(n,k+3), with T given by A026552. A27275

Sum of largest parts of all partitions of n into odd parts. A92322

T(n,k)=Number of ways to reciprocally link elements of an nXk array either to themselves or to exactly two horizontal or antidiagonal neighbors. A220632

Numbers that are the sum of five third powers in nine or more ways. A345185

Numbers that are the sum of five third powers in exactly nine ways. A345186

Positions of zeros in A165582. A165583

Terms in a specific cycle of length 29 of the map x->A098189(x). A98192

Positive integers n such that prime(n+i) is a primitive root modulo prime(n+j) for any distinct i and j among 0, 1, 2, 3. A243839

a(n) = (3·n - 1)*(4·n - 1). A33578

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