Properties of the Number -979

Nine Hundred Seventy-Nine

Basics

Value: -980 → -979 → -978

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: Yes

Factorization: 11 × 89

Divisors: 1, 11, 89, 979

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111010011

Octal: -1723

Duodecimal: -697

Hexadecimal: -3d3

Square: 958441

Square Root: 31.28897569432403

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

Matrix inverse of triangle A104505, which is the right-hand side of triangle A084610 of coefficients in (1 + x - x²)ⁿ. A104509

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

a(n) = ceiling( 4ⁿ/20 - (n² + 1)*2^n-1 ). A188162

Expansion of f(-x) * f(-x²)⁴ / φ(x²) in powers of·where φ(), f() are Ramanujan θ functions. A275372

Expansion of g.f. (1+x-2·x²+x³+x⁴)/((1-x)²*(1+x)²*(1+2·x)²). A106691

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 213", based on the 5-celled von Neumann neighborhood. A270904

Sum of fourth powers: 0⁴ + 1⁴ + ... + n⁴. A538

Number of elements in the set {(x,y): 1 <= x,y <= n, gcd(x,y)=1}. A18805

Square array T(m,n) read by antidiagonals: ∑_k=1..n k^m. A103438

Numbers that are palindromic in bases 10 and 15. A29970