Properties of the Number -8010

Ten

Basics

Value: -8011 → -8010 → -8009

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 89

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111101001010

Octal: -17512

Duodecimal: -4776

Hexadecimal: -1f4a

Square: 64160100

Square Root: 89.49860334105779

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

Triangle T(n,k) with the coefficient [x^k] of the characteristic polynomial of the following n X n triangular matrix: 4 on the main diagonal, -1 of the two adjacent subdiagonals, 0 otherwise. A124029

Triangle A124029 with the (0,0) entry replaced by 4. A123966

Triangle: q=2; m=1; t(n,k) = If[m == 0, n!, Product[Sum[(-1)ⁱ*StirlingS2[ k - 1, i]*(m + 1)ⁱ, {i, 0, k - 1}], {k, 1, n}]]; b(n,k,m) = If[n == 0, 1, t[n, m]/(t[k, m]*t[n - k, m])]. A156593

a(n) = 2·n*(2·n-1). A2939

Numbers m such that there are precisely 20 groups of order m. A298911

Product of a prime and the following number. A36690

6 times pentagonal numbers: a(n) = 3·n*(3·n-1). A152743

Riordan array (1/(1+4x+x²), x/(1+4x+x²)). A159764

Array read by antidiagonals: T(n,k) is the number of binary rooted trees with n leaves of k colors and all non-leaf nodes having out-degree 2. A319539

Sums of five consecutive squares: a(n) = n² + (n+1)² + (n+2)² + (n+3)² + (n+4)². A27578