Properties of the Number 71266

Seventy-One Thousand Two Hundred Sixty-Six

Basics

Value: 71265 → 71266 → 71267

Parity: even

Prime: No

Previous Prime: 71263

Next Prime: 71287

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 13 × 2741

Divisors: 1, 2, 13, 26, 2741, 5482, 35633, 71266

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10001011001100010

Octal: 213142

Duodecimal: 352AA

Hexadecimal: 11662

Square: 5078842756

Square Root: 266.9569253643741

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..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order. A278727

a(n) = floor((π/sqrt(2))ⁿ). A95214

Numbers k for which 6k+1, 24k+5, 432k²+72k-1, and 432k²+90k-1 are all prime. A175513

Number of nX2 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order. A278721

Smallest numbers which can be written in exactly n different ways as k + R(k) where R(k) is k reversed (A004086). A71266

Number of nX5 0..1 arrays with every element equal to 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A298954