Properties of the Number 71426

Seventy-One Thousand Four Hundred Twenty-Six

Basics

Value: 71425 → 71426 → 71427

Parity: even

Prime: No

Previous Prime: 71419

Next Prime: 71429

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 71 × 503

Divisors: 1, 2, 71, 142, 503, 1006, 35713, 71426

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001011100000010

Octal: 213402

Duodecimal: 35402

Hexadecimal: 11702

Square: 5101673476

Square Root: 267.25643116677287

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

Start with a single pentagon; at n-th generation add a pentagon at each expandable vertex; a(n) is the sum of all label values at n-th generation. (See comment for construction rules.) A247619

Number of (n+1)X(7+1) 0..2 arrays with the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one. A237636

T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with the upper median of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one. A237637

Sprague-Grundy values for octal game .11337. A71426