Properties of the Number -9009

Nine

Basics

Value: -9010 → -9009 → -9008

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: Yes

Factorization: 3 ² × 7 × 11 × 13

Divisors: 1, 3, 7, 9, 11, 13, 21, 33, 39, 63

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001100110001

Octal: -21461

Duodecimal: -5269

Hexadecimal: -2331

Square: 81162081

Square Root: 94.91575211733824

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 of coefficients in polynomials for partial sums of powers, scaled to produce integers: ∑_i=1..m i^n-1 = ∑_k=1..n T(n,k)*m^k/A064538(n-1). A79618

Regular triangle, coefficients of the polynomial P(n)(x) = (-1)ⁿ⁺¹*(2·n+1)*binomial(2·n, n)*∑_i=0..n xⁱ*binomial(n, i)/(n+i+1). A327809

Centered cube numbers: n³ + (n+1)³. A5898

Numbers that are palindromic in bases 2 and 10. A7632

Numbers that are the sum of 11 positive 7th powers. A3378

3 times hexagonal numbers: a(n) = 3·n*(2·n-1). A94159

Smallest multiple of n using only digits 0 and 9. A78248

Numbers k such that k and k+1 have 4 distinct prime factors. A140078

G.f.: 1/((1-x)*(1-x²))³. A38163

a(n) = binomial(n+4,4)*(4·n+5)/5. A34263