Properties of the Number -2378

Three Hundred Seventy-Eight

Basics

Value: -2379 → -2378 → -2377

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 29 × 41

Divisors: 1, 2, 29, 41, 58, 82, 1189, 2378

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100101001010

Octal: -4512

Duodecimal: -1462

Hexadecimal: -94a

Square: 5654884

Square Root: 48.76474136094644

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

Expansion of 1/(1 + 2·x - x²). A77985

a(n) = -2·a(n-1) + a(n-2) for n > 2, with a(0) = a(1) = 1, a(2) = 0. A215936

Expansion of 2+(1-2·x)/(-1+2·x+x²). A176981

List of triples (r,s,t): the matrix M = [[1,4,4][1,3,2][1,2,1]] is raised to successive negative powers, then (r,s,t) are the square roots of M[3,1], M[1,1], M[1,3] respectively. A249577

G.f.: ∏_m>0 1/(1 + x^m + 2·x^2·m + 3·x^3·m). A290395

a(n) = -n² - n + 72. A110678

A measure of how close the square root of 2 is to rational numbers. A68515

Pell numbers: a(0) = 0, a(1) = 1; for n > 1, a(n) = 2·a(n-1) + a(n-2). A129

a(n) = 6·a(n-1) - a(n-2) for n > 1, a(0)=0 and a(1)=2. A1542

Table by antidiagonals of T(n,k) = n·T(n,k-1) + T(n,k-2) starting with T(n,1) = 1. A73133