Properties of the Number 71009

Seventy-One Thousand Nine

Basics

Value: 71008 → 71009 → 71010

Parity: odd

Prime: No

Previous Prime: 70999

Next Prime: 71011

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 17 × 4177

Divisors: 1, 17, 4177, 71009

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010101100001

Octal: 212541

Duodecimal: 35115

Hexadecimal: 11561

Square: 5042278081

Square Root: 266.47513955339247

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 nXk 0..1 arrays with each 1 adjacent to 3, 4 or 5 king-move neighboring 1s. A296990

a(n) = ∑_k=1..n k² * sigma_n-2(k). A356243

Number of nX4 0..1 arrays with each 1 adjacent to 3, 4 or 5 king-move neighboring 1s. A296986

Moran numbers whose arithmetic derivative is also a Moran number (A001101). A349485

Number of solutions (x,y,z,u,v,w) to x+y+z = u+v+w, 0<=x,y,z,u,v,w<=n-1, x>=y>=z, u>=v>=w. A71009