Properties of the Number 81577

Eighty-One Thousand Five Hundred Seventy-Seven

Basics

Value: 81576 → 81577 → 81578

Parity: odd

Prime: No

Previous Prime: 81569

Next Prime: 81611

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 29 ² × 97

Divisors: 1, 29, 97, 841, 2813, 81577

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111010101001

Octal: 237251

Duodecimal: 3B261

Hexadecimal: 13ea9

Square: 6654806929

Square Root: 285.616876252087

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

Number of 2 X 2 matrices with all elements in {0,1,...,n} and determinant >=n. A210366

a(n) = 97·n². A174338

Pascal-(1,2,1) array read by antidiagonals. A81577

Number of (n+1)X(2+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both. A234754