Properties of the Number 81473

Eighty-One Thousand Four Hundred Seventy-Three

Basics

Value: 81472 → 81473 → 81474

Parity: odd

Prime: No

Previous Prime: 81463

Next Prime: 81509

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 7 × 103 × 113

Divisors: 1, 7, 103, 113, 721, 791, 11639, 81473

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 10011111001000001

Octal: 237101

Duodecimal: 3B195

Hexadecimal: 13e41

Square: 6637849729

Square Root: 285.434756117751

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

n⁴*a(n) is the number of spheres in complex projective space tangent to 4 smooth surfaces of degree n in general position. A30654

Values of z arising from representations of n >= 11 in A085514. A102777

Smallest positive even number not the permanent of a real singular (0,1)-matrix of order n. A81473