Properties of the Number -1976

Nine Hundred Seventy-Six

Basics

Value: -1977 → -1976 → -1975

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 13 × 19

Divisors: 1, 2, 4, 8, 13, 19, 26, 38, 52, 76

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110111000

Octal: -3670

Duodecimal: -1188

Hexadecimal: -7b8

Square: 3904576

Square Root: 44.45222154178574

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 A137153(n,k) = C(2^k+n-k-1, n-k), read by rows. A137156

sin(tan(x)*sin(x))=2/2!*x²+4/4!*x⁴-58/6!*x⁶-1976/8!*x⁸... A9513

A generalized Catalan number sequence. A174015

Triangle read by rows, inverse binomial transform of A152431. A152432

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 35", based on the 5-celled von Neumann neighborhood. A269817

Duplicate of A009513. A12366

arcsinh(tan(x)*sin(x))=2/2!*x²+4/4!*x⁴-58/6!*x⁶-1976/8!*x⁸... A12370

a(n) = 13 + 12·n - n². A136316

Octagonal numbers: n*(3·n-2). Also called star numbers. A567

Generalized octagonal numbers: k*(3·k-2), k=0, +- 1, +- 2, +-3, ... A1082