Properties of the Number -811801

Eight Hundred Eleven Thousand Eight Hundred One

Basics

Value: -811802 → -811801 → -811800

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 17 ² × 53 ²

Divisors: 1, 17, 53, 289, 901, 2809, 15317, 47753, 811801

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -11000110001100011001

Octal: -3061431

Duodecimal: -331961

Hexadecimal: -c6319

Square: 659020863601

Square Root: 901

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

Main diagonal of A082043: a(n) = n⁴ + 2·n² + 1. A82044

Squares with initial digit '8'. A45792

Perfect squares k such that each decimal digit of k is equal to the difference of at least two other digits of k. A255893

Squares composed of digits {0,1,8}, not ending with zero. A58422

a(n) = ∑_{1 <= x₁, x₂ <= n} ( n/gcd(x₁, x₂, n) )³. A372950

Squares resulting from procedure described in A048391. A48392

Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically. A208033

Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically. A208037

Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 1 0 1 vertically. A208042

Rotationally ambigrammatic square numbers with no trailing zeros. A340164