Properties of the Number 81263

Eighty-One Thousand Two Hundred Sixty-Three

Basics

Value: 81262 → 81263 → 81264

Parity: odd

Prime: No

Previous Prime: 81239

Next Prime: 81281

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 13 × 19 × 47

Divisors: 1, 7, 13, 19, 47, 91, 133, 247, 329, 611

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011110101101111

Octal: 236557

Duodecimal: 3B03B

Hexadecimal: 13d6f

Square: 6603675169

Square Root: 285.0666588712191

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) = 225n² + 2n. A158228

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 15. A31693

Concatenations C1 and C2 and C3 and C4 are all prime (see the comment lines). A34819

Number of distinct (modulo rotation and reflection) n X n associative panmagic squares. A81263