Properties of the Number -978

Nine Hundred Seventy-Eight

Basics

Value: -979 → -978 → -977

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 163

Divisors: 1, 2, 3, 6, 163, 326, 489, 978

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111010010

Octal: -1722

Duodecimal: -696

Hexadecimal: -3d2

Square: 956484

Square Root: 31.272991542223778

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

INVERTi transform of d(n), A000005. A159933

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

Expansion of q·f(-q¹, -q⁶)³ / f(-q², -q⁵)² * f(-q³, -q⁴) in powers of q where f() is Ramanujan's two-variable θ function. A305443

Expansion of (1 - x - x² + sqrt((1 - x - x²)² - 4·x³))/2 in powers of x. A292461

The residue of p(n) modulo q(n) in the interval (-q(n)/2, q(n)/2], where p(n) = A000041(n) and q(n) = A000009(n). A386703

Expansion of (1-x)^-1/(1+x-2·x³). A77904

Generalized Catalan numbers: a(n+1) = a(n) + ∑_k=1..n-1 a(k)*a(n-1-k). A4148

Positive integers which apparently never result in a palindrome under repeated applications of the function A056964(x) = x + (x with digits reversed). A23108

Triangle read by rows. Convolution triangle of the prime indicator sequence A089026. A357368

Numbers that are the sum of 10 positive 5th powers. A3355