Properties of the Number -969

Nine Hundred Sixty-Nine

Basics

Value: -970 → -969 → -968

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: Yes

Factorization: 3 × 17 × 19

Divisors: 1, 3, 17, 19, 51, 57, 323, 969

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: Yes

Today's Target

2196 Try Today's Challenge

Representations

Binary: -1111001001

Octal: -1711

Duodecimal: -689

Hexadecimal: -3c9

Square: 938961

Square Root: 31.12876483254676

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

Riordan array (1/(1+x)³,x/(1+x)²). A109954

Inverse of twin-prime related triangle A111125. A113187

Coefficient of x³ in the minimal polynomial of the continued fraction [1ⁿ,2^1/3,1,1,...], where 1ⁿ means n ones. A267081

a(n) = n - 2^{sum of digits of n}. A328882

Expansion of (∏_j>=1 (1-(-x)^j) - 1)¹⁹ in powers of x. A47644

Expansion of 1 - 3*(1-x-sqrt(1-2·x-3·x²))/2. A168076

G.f.: ∑_n>=1 moebius(n)*xⁿ/(1 - Lucas(n)*xⁿ + (-1)ⁿ*x^2·n), where Lucas(n) = A000204(n). A204291

Expansion of ∏_k>0 (1 - x^k)^k·3. A276552

Quotient (A003961(k)-σ(k)) / (2·k-A003961(k)) computed for those k for which this quotient is an integer, where A003961 is fully multiplicative with a(prime(i)) = prime(i+1). A379217

Triangle of coefficients, read by row polynomials P_n(y), that satisfy the g.f.: A096651(x,y) = ∏_n>=1 1/(1-xⁿ)^[P_n(y)/n], with P_n(0)=0 for n>=1. A96800